How Does An Rv Water Pump Work

How An RV Water Pump Works

This post includes affiliate links for your convenience. As soon as we acquired our RV, we had to become acquainted with all of its systems. Because water is a need for life, it was critical for us to understand how we would have running water in our RV before we set out on our adventure. An RV water pump is powered by your vehicle’s 12V battery. Whenever you turn on a faucet or flush the toilet when not connected to city water, the pump senses a decline in water pressure and automatically turns on to maintain the water pressure.

While the notion of having a water pump is rather straightforward, many of us are unfamiliar with the concept of having a water pump.

How Pumps Work

Now, I’m going to share with you something really essential that I learned in my thermodynamics class at the University of Washington. Pumps are used to move liquid. Professor of Thermodynamics at Diane’s school I understand that it seems apparent, but the easiest way to destroy a pump is to leave it running empty for an extended period of time. Pumps are devices that are used to transport liquids from one region of lower pressure to another area of higher pressure, often against the flow of the liquid.

  • For the purpose of creating suction, the diaphragm is operated by an electric motor, which is located on each side of the chamber.
  • The diaphragm contracts, resulting in a reduction in volume and an increase in pressure; the valve at the intake shuts and the valve at the outlet opens, forcing the water to exit the chamber.
  • A diaphragm pump is an excellent choice for this sort of application.
  • This eliminates the need to worry about priming your pump once your system has been completely emptied.
  • If the pump is operating but no water is coming out, something is amiss; read the Troubleshooting section below for more information.
  • In operation, they are either on or off, causing them to pulse while trying to maintain a preset pressure; for more information, see our page on RV water pumps pulsating.
  • Variable speed pumps are available, which remove the pulsation and are often quieter to operate.

They are often found in more costly recreational vehicles, however you may be able to improve the one in your present vehicle. Renator RV Water Pressure Regulator for RV Campers is a device that regulates the water pressure in an RV. RV water pressure regulator made of brass and lead-free brass.

  • SIMPLE TO INSTALL AND SIMPLE TO USE. Effortlessly control and monitor your water pressure, and experience powerful showers and good water flow while enjoying UNMATCHED QUALITY CONTROL AND BUILD QUALITY, all while saving money. Renator is one of the few firms in the United States that does both secondary quality control and is LEAD-FREE. As a result of the modifications, this regulator contains the least amount of lead of any regulator now available on the market. Each batch of regulators is subjected to testing.

In the event that you do not have water connections and are solely reliant on your fresh water tank, it is permissible to leave your pump operating. If you do not have a need for water, such as turning on a faucet or flushing a toilet, your pump should not be running at all. While driving, you should, however, turn off your water pump to avoid flooding your car. You don’t want a jolt or a jump on the road to cause a faucet to open and water to start flowing while you’re behind the wheel. We individually switch off our water pump at night and when we aren’t in the vicinity of the RV.

It’s better to be cautious than sorry in this situation.

Water Pump Care and Maintenance

Water pumps, on the other hand, are quite simple to maintain and don’t necessitate a lot of attention. Inspection of the water lines, cleaning of the pump strainer, and sanitization of the water system are all part of routine water pump maintenance. Water line inspection is a simple process that anybody can do. Simply do a visual inspection of your water pipes to look for any leaks, kinks, or other damage that may have occurred. Make an effort to get your hand into any locations that may be difficult to see and feel about to ensure that nothing feels damp.

In this way, dirt and dust will be prevented from entering into the pump and causing harm.

  • Shurflo Classic Series Strainers are clean, clear and cost-effective strainers that save the need for costly repairs by keeping dirt and other particles out of the water supply. It attaches directly to the pump head using a screw. The bowl’s transparent design indicates when it is time to clean it.

The pump strainer should be cleaned by first disconnecting the water supply line from the strainer and then unscrewing the strainer from the pump. You should be able to reach the mesh within the strainer by twisting the strainer apart. Remove any stuck-on dirt from the mesh by scrubbing it with an old toothbrush after a thorough rinsing. After that, reassemble the strainer in the same manner in which it was disassembled, and reattach it on the pump and water line. When filling your fresh water tank, install a filter on the incoming water line to assist prevent junk from getting into your tank in the first place.

At a campsite or waste site, you never know what kind of water you will be getting.

According to one of the top pump manufacturers, a lack of sanitization is a common cause of premature pump failure and poor performance.

It will assist to keep your pump functioning for a longer period of time if you disinfect your water system before storing your RV and before using it for the first time of the season.

More information on how to properly care for your RV water pump can be found in our dedicated post, How to Care for an RV Water Pump. You may also learn about the best techniques for storing and cleaning your water hose during your visit.


Do you have problems with the water pump in your RV? Here are some of the most prevalent problems, as well as viable solutions.

Why is my water pump so noisy?

Because of the pulsing nature of RV water pumps, they can be a little loud at times. Even so, if you notice that your pump is making more noise than it used to, there are a few things you may check. Visually examine your pump to ensure that nothing has come loose or is contacting the pump, which might cause it to vibrate excessively. The mounting screws should be threaded through rubber grommets and should not be excessively tight or too loose in their fit. You want the pump to “float” a little bit so that it doesn’t rattle against the mounting surface when it’s turned on.

In the worst case scenario, it might be an indication that your water pump is malfunctioning.

When I turn on the faucet, no water comes out?

First and foremost, determine whether or not the pump is turning on when water does not come out of the faucet.

Is the pump making noise?

If the pump is generating noise, it is likely that it is operating, but that the water is not reaching it. First and foremost, make certain that your fresh water tank is completely filled. We all know that the simple stuff should be eliminated first, but it’s better to start there. If your tank is low or completely empty, it stands to reason that you will not be receiving any water. Keep in mind that “Pumps Pump Liquid” is an abbreviation. Once you’ve determined that your tank is full, or that there is at least some water in it, it’s time to look for water leaks in the system.

  1. Check that all of the connections to the pump are securely linked and tight.
  2. It is possible that you have a leak between the pump and the faucet if there is water in the tank due to the pump drawing water from the tank.
  3. This may assist you in narrowing down the location of your leak.
  4. Examine the line for any evidence of wear and tear.

Is the pump not making noise?

A pump that makes no noise indicates that it is not turning on or operating properly. When troubleshooting anything, you must first ensure that it is properly plugged in and switched on; this is true for a water pump as well. To begin, you must determine whether or not electricity is being supplied to the pump. Verify that the pump switch is in the “on” position by pressing it. Check to see if any form of reset occurs by turning the switch on and off many times. Next, check to confirm that your battery isolation switch is not activated, and then check to see whether any other devices that operate on 12V are operational or not.

Check to see if any fuses have blown.

The final step in determining whether or not there is electricity will be to take a voltmeter and go right to the source.

Inspect your batteries to ensure that your pump is receiving the full 12 volts they are supposed to. If it isn’t, you have a wiring problem, which will be a major pain in the buttocks for you. If it is receiving electricity, it is probable that you require a new pump.

Why is my pump running when the faucet is off?

In the event that you hear your pump running but no one is utilizing water, IMMEDIATELY TURN OFF THE PUMP. The fact that your RV water pump is operating indicates that there is a problem with your system’s pressure at some point. To put it another way, you have a leak. Complete a thorough check of your water lines to determine the location of the broken or damaged line. It might be anything as easy as a loose fitting, but it’s possible that you’ll have to replace part of your plumbing. You may discover how to fix a running toilet in our articleA Simple Fix for a Running RV Toilet if it is anything as simple as a clogged toilet.

Recommended RV Water Products

(Amazon) – A simple water filter, such as this one from Camco, helps to maintain your water system free of silt, chlorine, and heavy metals. (Amazon) Use a water pressure regulator (available on Amazon) to protect your water system from being damaged by excessive water pressure. You never know when you will be at an RV park that will have unusual water pressure. An excellent water hose (available on Amazon) is essential for preventing harmful BPAs and Phthalates from entering your drinking and cooking water systems.

What Is an RV Water Pump and How Does It Work?

A recreational vehicle (RV) may take you on some very fantastic camping excursions. And an RV water pump makes it feasible to go on such excursions. Today, we’re going to speak about a critical but sometimes forgotten component of your RV’s water system: the pressure regulator. Let’s get started!

What Does an RV Water Pump Do?

It has the potential to substantially enhance your RVing experience. Let’s have a look at a number of the reasons why having an RV water pump would be beneficial to you.

1. Move Water from Tank to Pipes

Because RVing allows you to have greater independence, the more likely it is that you may find yourself camping without access to potable water in the future. Due to the lack of a water connection at your campsite, you’ll need to fill up the freshwater tanks in your RV prior to setting up camp. This pump will provide the pressure necessary to send the water from your RV’s fresh water tanks to your taps, toilet, and showerhead with the least amount of waste.

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2. Increase Water Flow/Stabilize Pressure

If you’re camping at a campground, you’re certain to come across areas where the water pressure is inadequate. It’s not pleasant to turn on the shower only to be disappointed by the lack of water pressure. You may increase the pressure in your RV by using the water pump that included with your RV. You will no longer be forced to endure a horrible low-pressure shower experience. Many RVers even choose to forego using their city water connection in favor of using their water pump.

How a Water Pump Works

When the water pump is turned on, it pressurizes the water pipes in the RV, forcing water out. When you open a water fixture, the pressure in the system is released, and the water pump is activated. The water pump repressurizes the water pipes, and the water will continue to flow until you turn off the water supply to the faucet. When you turn off the fixture, the water pipes will repressurize, which will force the water pump to shut down.

The pump is powered by the 12-volt system of the RV, which allows it to operate only on battery power when not connected to shore power. When the water pump is powered by the battery bank of an RV, it is possible to have access to pressurized water even when camping off-grid.

When to Turn Off Your Water Pump

While water pumps are a fantastic resource to have in your RV, they may also cause significant harm if they are not handled properly. Leaving a faucet open unintentionally will ultimately cause your wastewater tanks to overflow since a water pump will continue to operate until the pipes can repressurize themselves. Ensure that the water pump on your RV is turned off when hauling it. An open faucet might cause the gray tank to overflow and flood the interior of the house. When you’re going to be away from your RV for a lengthy period of time, you should also switch off the water pump for the same reason.

If a waterline or fitting were to leak, the water pump would continue to try to pressurize the lines notwithstanding the breach.

Water Pump Maintenance Tips

Check the condition of your water pump on a regular basis. The frequency with which you inspect your water pump will be determined by how frequently you use your RV. If you travel full-time in your RV, you should inspect your water pump at least once per month or every two months. Weekend camping throughout the warmer months should be incorporated into your winterization and de-winterization routines if you do it on a regular basis. While checking it, keep an eye out for signs of wear and tear as well as any faulty connections.

  1. Poor water connections can result in floods, and faulty electrical connections can result in disastrous fires in recreational vehicles.
  2. This filter is prone to clogging.
  3. Running a bleach-like solution through all of your fixtures and let it to rest overnight is the best way to properly sanitize your system.
  4. Maintaining the cleanliness of your water system is one of the most effective methods to ensure that your water pump continues to operate for many years.

How Long Does an RV Water Pump Last?

If properly cared for, they can endure for ten or even more years. Cold weather, mineral buildups, and other corrosion, as well as keeping a pump running while there is little or no water in the freshwater tank, are some of the most common causes of damage.

How Do I Increase Water Pressure in My RV?

In comparison to water lines in a residential residence, RV water lines are much different. They aren’t capable of managing the same level of water pressure, but there are a few things you can do to increase the amount of pressure. Examine your RV’s water lines to ensure that there are no obstructions, kinks, or fractured hoses in the system. A large drop in water pressure throughout the system is probable if any of these problems are present, as is the case with the majority of them. When utilizing a water pressure regulator, make sure that it is operating properly before continuing.

RV showerheads from Oxygenics are available in a variety of types that significantly improve water pressure while using less water.

Your RV’s water pump is an essential component of the vehicle’s water system.

You’ll come to rely on it more than you realize at first glance. If you take good care of it, it will be ready for your next voyage when the time comes. Have you ever had to service or repair the water pump in your recreational vehicle?

How Does an RV Water Pump Work and How To Operate It

If you want to have a pleasant time with your RV, you need spend some time getting to know the important components and how they function. Knowing how your RV pump works and how to use it correctly may help you save a significant amount of time and money on your trip. When and how does an RV water pump work, as well as how do you operate it: An ordinary water pump does nothing more than transport water from your fresh water tank to your sink, bathroom, or shower. When your RV is connected to an external water source, you will not require it.

Continue reading this post to find out all you need to know about how your RV’s water pump works.

It will only take a few minutes to become acquainted with the water pump and to understand how to use it properly.

What is an RV Water Pump?

Your recreational vehicle’s water pump is comparable to all mechanical water pumps seen in automobiles and other heavy machinery. Pumping water from a localized source via piping to your sink, bathroom, shower, and other water outputs is the duty of a water heater. The pump is powered by electricity, and it must be turned on from within your recreational vehicle. Once the pump is turned on, a pressure switch continuously monitors the water pressure and automatically activates the pump when the pressure becomes too low.

It also makes certain that if you have too low water pressure from your connection, the pump will activate and pump water into the line from your fresh water tank.

What is an RV Water Pump Used For?

At any one time, the water pump can be utilized in one of two different ways. The water tank can be used as a primary supply of water or as a backup source in the event that your external water sources are not performing at their optimal levels. During main usage, you must ensure that your fresh water tank is constantly filled with water. In this way, the water pump is able to deliver water to the interior of your RV whenever you want it. No matter where you park, you will have access to a fresh supply of drinking water.

Alternatively, if the pressure is too low, it will draw additional water from your reservoirs.

This backup mechanism is especially useful if you are parking for the night in the parking lot of a retail store.

When do you Use the Water Pump in an RV?

There are special situations in which you will require the usage of your water pump in addition to your typical everyday activities. Cooking, cleaning, taking a shower, and so on are examples of such functions. Here are some more instances in which you should make advantage of your pump:

  • You should do this whenever you are filling or emptying your fresh water tank. The term “boondocking” refers to the act of parking without hookups in extremely distant regions or parking lots. When the water pressure from external sources is low
  • Although you may not always be required to utilize your water pump when emptying your water tank, doing so will assist to expedite the process. It is entirely up to you whether or not to utilize it. If you do not switch on the pump when you are emptying your water tank, you will not do any damage to your water system.

Can I Leave the RV Water Pump On?

On both sides of this debate, there are RV enthusiasts with years of experience. Some people believe that if you aren’t using the water pump, you should turn it off completely. This may save you a little money on power or wear and tear, but it may mean that you won’t have water when you really need it. Those who disagree with this viewpoint believe it is acceptable to leave the water pump running for the majority of the time. At the most, they have stated that the water pump should only be switched on and off once a week on Saturday and Sunday afternoons.

Unless you turn on a faucet, the water pump will not use any power.

If you are traveling a long distance or will be absent for an extended period of time, you should turn it off.

In addition, if you are driving to your next location, you should turn off the water pump to conserve energy.

Is it Bad to Leave the Water Pump on in an RV?

This is not always the case. This is also dependent on your own preferences. It is possible to prevent scenarios when a rough road knocks the shower head off and the water pours into your shampoo bottle by turning off the water [pump]. Everything is dependent on your circumstances. If you intend to spend the most of your time in and around your RV, you can leave it turned on. The hunt for the switch might be a bother when you are in a rush and need to go somewhere quickly. When you are gone from your RV for an extended amount of time, accidents might occur.

Essentially, it is up to you to determine how you wish to approach this situation.

If you don’t want to risk the possibility of coming home to a flooded house, turn off the water pump.

After that, you should switch off the water pump.

How Much Power does an RV Water Pump Use? (Watts and Amps)

The most important thing to understand about water pumps is that they are powered by a 12 volt direct current system. It is necessary to have the water pump connected to a 12 volt battery or other power source in order for it to function properly. If you want to find out how much power is consumed by a water pump, utilize the equation amps multiplied by voltage equals watts. It is only necessary to plug in an amp or two into the equation because the water pump operates on a DC 12 volt system alone.

An average water pump may consume around 5.5 amps over the course of an hour on a regular basis, depending on your RV and how old or new it is.

If you operate your water pump for a total of roughly 2 hours every day, you will consume approximately 11 amps of electricity. If you multiply that value by 12 volts, you will find that your water pump consumed 132 watts on that particular day.

How to Operate an RV Water Pump

It is not necessary to have a degree in rocket science to operate a water pump and master the operation. You only have to confirm that the water pump is still attached to its 12 volt DC power source during your routine maintenance checks because it has already been installed for you. Once you have determined that this is the case, all that remains is for you to walk inside your RV and turn on the water pump switch and open a faucet. It is possible for people to make rash decisions when it comes to their water supply system.

  • In reality, what they did was flood the earth beneath their campervan.
  • You’ll save yourself a lot of embarrassment if you do this.
  • Either the water line has to be bled or the water pump needs to be primed.
  • Allow the line to spurt for a minute or two, and when the water begins to flow consistently, you have successfully removed the air from the line.
  • These will prevent your water pump from functioning correctly, and you should take care of them as soon as you can after discovering them.
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Hooking up RV to City Water

The vast majority of the facts pertaining to the water pump and its appropriate use is not tough to comprehend or follow along with. If the water pump problems get too intricate, you should consult with a competent RV technician who can tackle the most difficult difficulties. Connecting the city water intake line is not something you should delegate to a technician. As simple as connecting your garden hose to your outside garden faucet, this method works. To begin, you must first remove the cap that covers the intake aperture.

Afterwards, you’ll need to connect the other end of the hose to the water supply.

However, there is one thing to keep in mind while connecting this inlet to the water systems of the campgrounds.

It’s possible that the water pressure in your hose and your RV water system is limited.

It is possible that you may wish to connect a water pressure regulator to the water hose in order to protect yourself and your RV from harm. Water pressure levels should remain between 40 and 60 psi as a result of this.

Does the RV Water Pump Need to be on When Connected to City Water?

In the case of this question, the answer is no. Once you have connected the city water intake line, you will be able to bypass the water pump and have water delivered straight to your faucets and other water outputs without the need for a water pump. The water pump is solely intended to pull water from the fresh water tank in your home. It is not required to assist in the transportation of pressurized water to its destination. To ensure that the water coming from your hookup or municipal water intake is safe to drink, you may want to install a filter somewhere along the line after that.

Some Final Comments

Water pumps are not anything to be terrified of in the least. They are straightforward mechanical devices that provide a critical function for you. Learn how to handle them properly and how to run them appropriately, and they will serve you well for a long period of time. Because they do not operate on alternating current, they are very useful. They cannot function effectively or at all unless they are powered by a DC 12 volt power supply. When you are outside of your RV, there is nothing wrong with leaving the water pump running; but, you should be aware that accidents can and do occur when you do.

You will save both time and money if you do this.

RV Water System Diagram: How It All Connects

Hey! This website is financed by its readers, and we receive compensation if you make a purchase from a store after clicking on a link on our website. The majority of RV water systems operate in a manner that is fairly similar to that of a regular home or apartment. The fundamental difference is that in a permanent house, when you turn on a faucet or flush a toilet, water and waste emerge and disappear with little or no effort on your part, but with a mobile home, you have to exert effort. However, living in an RV means that you will be responsible for supplying water and disposing of natural waste.

Most factory-built recreational vehicles (RVs), such as class A or C motorhomes and towable trailers, are fitted with a freshwater system and a waste water disposal system that divides the wasted water into two categories: black water and gray water, respectively.

If you are looking for an alternative to the conventional water systems currently offered by most popular manufacturers, I will share some of my design ideas for your water system in the future article.

First, let’s look at your fresh water supply

Max RVI is credited with the photograph. Your RV’s fresh water holding tank will most likely have an exterior fixture that is labeled “city water supply” if it has one installed. You can see in this shot that this unit has a supply fixture that accommodates two different sizes of hoses, whereas most recreational vehicles are only equipped with a single hose fitting meant to accommodate a typical garden hose. RV water filters are an excellent resource. Tip of the day: If you’re looking for a way to save money, consider donating to a good cause.

  1. Following that, your fresh water will be sent into a holding tank.
  2. You will need to turn that valve off if you are utilizing a continuous supply of water and you will be camping in the same area for several days.
  3. Cleaning and Sanitizing Your RV’s Water Tank is a related article.
  4. This overflow valve will also give a mechanism for the air in your tank to be expelled when the water fills it, preventing your tank from over expanding and perhaps rupturing as the water fills it.
  5. Photo courtesy of the Jayco RV Forums.
  6. in order to provide freshwater to your system Most manufactured RVs with freshwater tanks are equipped with a 12-volt pump that takes water from the tank whenever you need to use it.
  7. Although not all freshwater systems require manual operation, certain systems require you to manually switch on and off the pump each time you access your freshwater system when not utilizing the municipal water system.
  8. In addition, if your trailer is outfitted with an outdoor shower, a cold-water line will be extended to that faucet as well as the rest of the system.

Everything else, with the exception of a cold-water line that delivers water to your toilet for flushing, should be routed directly into a gray water holding tank.

What is grey water?

In a bathroom, gray water refers to utilized water that has been drained when completing tasks such as cleaning dishes, bathing in your indoor shower, or even simply washing your hands and brushing your teeth. Because some soaps are not environmentally friendly and can often contain small particles of food, gray water should not be drained directly onto the ground. While gray water is not considered raw sewage, it should be treated as such because it can attract bugs and vermin when it is drained directly onto the ground.

It is recommended that you visit where I explain how your gray water system works as well as the best method to drain and maintain it in order to have a better knowledge of its purpose.

What is black water?

Quite simply, black water is untreated sewage that must always be disposed of in an appropriate manner. Most recreational vehicles (RVs) that have a water system that includes a freshwater tank as well as a gray water tank will almost probably contain a black water tank to store human waste. My previous article on black water tanks shared some of my thoughts on how to best understand that system, as well as what you should do in order to properly access and maintain it. I hope you’ll take a look at that article if you have any questions about your black water system that haven’t been answered in this article yet.

Final thoughts

In general, no matter what class or size of RV you have, most manufactured RV water systems are comparable. Of course, these will vary depending on the year your RV was built and the size of your RV, but as a general rule, most modern RVs will always adhere to the basic rule of plumbing. Crap always goes downhill, and as long as your water supply and drainage system adhere to this guideline, you should have a sufficient water system. Crap always goes downhill Occasionally, smaller restoration campers or class B type motorhomes will have a variety of water supply and wastewater disposal designs, and I hope to share some of the design changes and modifications I have made on numerous van builds and camper restorations I have done for friends and clients over the years in a future column.

If you need some advice on your plumbing system, make sure to check out these tips from Mike:

  • The best RV water softeners, the best RV water pressure regulators, the best RV macerator pumps, the best RV sewer hose, and the best RV portable waste tanks are all available.

In the meanwhile, my friends, thank you for taking the time to read this and, as always. I hope to see you out on the water at some point.

RV Water Pump: A Guide on 12 Volt RV Water Pumps

Image courtesy of Amazon Water is the lifeblood of all living things on the planet – even those who go by car. In order to avoid lugging case after case of pricey bottled water, you’ll need to have a water pump installed in your RV before embarking on your next adventure. Fortunately, most recreational vehicles are equipped with a built-in pump. However, if you’re in the market for a new water pump for your RV for any reason, the most frequent type you’ll find is the 12V water pump, which is available in a variety of models and brands.

  • It’s in charge of delivering fresh water from the right holding tank to your faucet taps, toilet, and shower head — and if you’re someone who likes boondocking or wilderness camping on a regular basis, this is an absolutely critical function.
  • Here, we’ll assist you in gathering the information you need to make your search for the ideal camper water pump that much simpler and less time-consuming.
  • However, understanding what you’re searching for in a water pump is the first step in locating the most suited one for you.
  • Pump for water at 12 volts RV models are the most common kind of motors used in recreational vehicles.
  • While 12V RV water pumps obviously do not pump water at the same pressure as bigger ones designed for installation in residential dwellings, as long as they are in good operating order, they do an excellent job of getting the job done and then some.

This information is intended to make your purchasing choice a little bit simpler. The specifications, or specs, of your RV water pump, for example, are something you should be well aware about. There are three primary metrics that need to be considered.

  • It is measured in gallons per minute (GPM) and is the rate of water flow as measured in the amount of water that a pump can process in a given amount of time. pumps with GPM ratings of 1.2 or less are termed “low volume,” whereas pumps with GPM values of more than 4 are designated “high volume” water pumps. The PSI (pounds per square inch) is another unit of measurement, but this time it is for pressure rather than flow. Due to the fact that RV plumbing systems are designed to withstand pressures between 40 and 60 PSI, you will want to be cautious about purchasing any pumps with pressure ratings greater than that range. Amperage, sometimes known as amps, is a unit of measurement that you’re presumably already aware with. It estimates the amount of electricity that a water pump requires in order to function properly. The majority of RV water pumps consume very little electricity
  • But, high-volume pumps can consume up to 15 amps of electricity.

There are several different types of 12V RV water pumps available, each with its own manufacturer, brand name, and specifications. The primary three are as follows: In this category, the most frequent type of pump is the constant speed pump, which, as its name implies, delivers water at only one speed. The only difference between these pumps is that they are eitherofforon or not. When it comes to water pressure, variable speed pumps provide water pressures that are comparable to what you are used to in your house.

  • They are often quieter — but also more costly — than their constant-speed equivalents, despite the fact that they are smaller.
  • As a result, they are often found primarily on bigger, 50-amp rigs because of the additional electricity they require to function.
  • Priming an RV water pump is a simple process, fortunately!
  • Make sure all of your faucets are completely open before turning on the cold water in your RV.
  • Step4: This should prime the pump by forcing water from the tank up through your faucet.
  • Each and every faucet needs to be purged of air, therefore you may want to open and close the faucets one at a time while running water through each one.
  • During this step, your pump will be fully primed because the water pump will only turn on when a faucet is really opened.
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When properly maintained, an RV water pump may survive for up to ten years – though, of course, there is always some variance based on the brand, model, and plain old luck of the draw, this is not uncommon.

Try troubleshooting with this useful guide to water pump repairs as a starting point.

First and foremost, you’ll want to turn off your water supply and make certain that your RV is not linked to any electrical.

Make careful to switch off the breaker at the inverter as well, so that your RV batteries does not continue to draw a live current via the cables.

After that, remove the fasteners that are holding the pump in place and remove it as well.

After that, just lower the new pump into position and reconnect all of the cables, hoses, and fittings.

A new water pump has been installed.

You should have no trouble locating an RV repair firm that will be eager to assist you in replacing your RV water pump.

Fortunately, we’ve put together this guide to locating dependable and reasonably priced RV repair providers that won’t set you back an arm and a leg for the most basic of tasks.

It is possible that this content contains affiliate links. More information on water pumps may be found in the following articles:

  • How to Select the Most Appropriate RV Water Pump for Your RV
  • Identifying and Troubleshooting RV Water Pump Issues – What You Need to Know

RV water pump troubleshooting- What you need to know

Image courtesy of Amazon The failure of your RV’s water pump may leave you feeling unsatisfied as a camper, which is unfortunate because your onboard plumbing facilities are one of the most appealing aspects of RV camping. That’s why we created this step-by-step tutorial for troubleshooting your RV’s water pump. You’ve come to the correct site if you’re looking for information on how to prime an RV water pump, what causes RV water pump leaks (and how to fix them), or what to do if you’re experiencing difficulties with your water pump after your RV’s long winter(ized) snooze.

  1. What ever the problem is with your water pump, we have a troubleshooting solution for you!
  2. Remember that these are large, somewhat complex devices that allow us to transport our small dwellings across the nation with us!
  3. Even for seemingly modest treatments, the invoices from RV technicians may quickly climb into the triple, and often even quadruple digits in cost.
  4. And when it comes to RV water pump issues, many of them are completely fixable, even if you aren’t a mechanically inclined individual.
  5. Yikes!
  6. If your RV’s water pump is running but no water is flowing out of the faucets, don’t get too worked up about it.
  7. Let’s take this topic one step at a time and examine it.

That sounds like something so apparent, yet it’s something that’s simple to overlook.

Your RV water pump will not function if your tank is completely depleted, or even if it is only partially depleted.

Examine the lines for frayed or broken connections, as well as worn, split or cracked lines.

Once that is completed, inspect all of the lines flowing from the holding tank to your rig and back again.

To begin, carefully untie the water line that connects the pump.

Re-establish the connection on the line.

Check to check if there is any form of obstruction or tube damage before proceeding.

Afterwards, reconnect it to the pump and switch it back on to observe whether the water starts to flow toward the faucets again.


It’s likely that something in the pump’s motor needs to be changed, or that it’s time to purchase a whole new machine.

Grab a buddy and ask them to help you by turning the water pump on and off when you require it.

Removing the water supply line from the pressure side of the pump is necessary.

To be prepared for the possibility of flooding, a bucket should be kept nearby.

If all that comes out is a trickle, you’ll most likely need to replace your water pump as well.

Close all of the water valves and begin inspecting the water pipes leading to all of the faucets.

Check to see that the valves are in good working order.

You may always pay an expert to check the lines for you — and now that you’ve identified the problem, you’ll be able to save a lot of money at the RV repair shop as a result of your discovery.

Now that’s been said, this occurs frequently — and it might feel like a dreadful inconvenience just before you’re about to go on a year’s worth of adventures. Several items should be checked if your water pump does not turn on after being winterized.

  • Did you forget to close the drain while you were supposed to be filling up the fresh water tank? After you ran RV antifreeze into the water pipes, did you make sure that everything was properly connected? Is it true that all of the shut-off valves are now open? (Please double-check!)
  • Is your pump completely deafening? Whether that’s the case, have you checked to see if there’s electricity? Have you checked the fuses in the panel? Examine the voltage at the pump with a multimeter to ensure that it is fully operational, and then double-check that the pump is grounded. (It will not function if it is not grounded.)

The RV water pump may need to be completely replaced if all of these concerns have been addressed and the locations stated in the first question have been thoroughly investigated. If if everything were that straightforward! The reality is that most recreational vehicles have little underbelly capacity, making it difficult to replace ANYTHING. Take a long, hard look at yourself and determine whether you have the necessary time, patience, and tools to do the project properly. If this is not the case, take it to an RV repair shop.

That being said, if you want to take on the replacement procedure on your own, the first step will be to remove the old, ineffective pump from the system.

Here’s how to choose the finest water pump for your recreational vehicle.

As a result, empty the tank before continuing.

Seriously, double-check everything – it’s a matter of life and death here!

Make sure you have towels ready in case you get wet!

For further information, you may need to review your owner’s handbook.

Pumps are available in a variety of designs and sizes on the market.

Follow the installation instructions that came with your new RV water pump.

Remember to pay attention so that you don’t mix up the in with the in and the out with the out.

The importance of this cannot be overstated!) It’s possible that long-term storage contributed to the premature demise of your water pump.

You’re sitting there enjoying a lovely, quiet evening at home when you notice something: your pump is cycling on and off despite the fact that you’re not trying to run any water.

This might be caused by something as easy as a loose connection, or it could be caused by something as inconvenient as a break in one of your lines or a faulty pressure switch on your RV water pump.

Loose connections or faulty valves can also allow air to enter your lines, resulting in sputtering faucets and, on rare occasions, a face full of water when you least expect it.

Keep in mind that if you have inadequately winterized your RV water system, your RV water pump may have frozen, causing damage that would need the replacement of the whole system.

What is it about the sound of your RV’s water pump that drives you insane?

RV firms are frequently pressed for time to ensure that all of the parts are in the correct location.

Check out the video above for a solution to RV water pump problems, including how to fix the noise.

It might be hidden beneath the bed, behind the sink, or underneath the rig.

Step3Remove the pump by unscrewing it and placing a piece of felt or rubber padding beneath the pump to protect it from damage.


Step4Insulate and duct tape all of the water pipes with foam pipe insulation to keep them warm.

It should be secured on both ends.

Step5Unwanted noise and extra vibrations are produced by pumps that switch on and off in quick succession.

Check your handbook and turn the flow down to a low setting.

Make an appointment with a professional, and be sure to inform them which RV water pump is currently installed in your rig.

Fortunately, this is a rather frequent problem, and resolving it is not too difficult.

(You may also refer to the video above for further guidance.) Fill up your fresh water tank in the first step.

Step 3: Turn on the water pump that is located near your RV’s water tank.

5th Step: Allow the water to run for a few minutes before turning off the faucets.

Note: Other water outputs, such as your showerhead and RV toilet, should not be overlooked.

Step5 (There is no in-between.) Please return to the first item on this list if your RV’s water pump is not priming properly.

If, after you have completed your activities and turned off the water, the pump continues to run and run, it is possible that your RV’s water pump is leaking in some manner.

This valve informs the water pump when to turn off the flow of water.

Consider the following: Step1: Disconnect the current check valve when the water is turned off.

Replace the check valve in the line with a new one in Step 2.

3 Connect the other end of the valve to the water pump on the RV and check that it is properly connected.

If that isn’t the problem, look at all of the water pipes in the unit.

They will pressurize the water pump and urge it to operate if the lines are broken.

You can get detailed information on your unique equipment by consulting your user manual — or, let’s be honest, YouTube!

Unless otherwise stated, this page is meant merely as a guide and a suggestion.

Before making any changes to your rig, it’s usually a good idea to consult with a specialist.

Fire and electrocution are genuine dangers when dealing with plumbing and electrical issues.

Learn more about how to pick an RV repair service that you will not be disappointed with by clicking here. It is possible that this content contains affiliate links. More useful information can be found in the following RVshare articles:

  • How to Use Water in Your RV
  • RV Water Pump: A Guide to 12 Volt RV Water Pumps
  • How to Reduce Condensation in a Recreational Vehicle

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