Can I Put A Bigger Water Pump In My RV? [Detailed Explanation] 2023

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Water pumps for RVs are a pretty important component in your RV and should be taken care of. Not only does your water pump need to be able to handle all the water you intend to use at any given time, but it needs to do so without causing any damage or issues down the road.

That’s why we’re going to talk about how RVs work with their pumps, what size pump you need for your RV, and how long they last before needing replacement.

Can I Put A Bigger Water Pump In My Rv?

Can I Put A Bigger Water Pump In My RV? [Detailed Explanation] 2023

Yes, you can install a bigger water pump in your RV and increase the water pressure, flow rate, and volume. A bigger water pump will provide more power and greater volume than a smaller pump.

The three main factors that determine how much power is required from your RV’s cooling system are:

  • The number of people who use it on average
  • The amount of time that they spend in it on average (i.e., how long they stay at campsites)
  • The climate where they’re traveling

Are There Any Downsides To Increasing The Size Of The Water Pump?

There are a couple of downsides to increasing the size of your water pump.

– First and foremost:

If you have an undersized pump, replacing it with a larger model can cause overheating problems. That’s because having too much horsepower to push through your plumbing lines is no good—it’ll just heat up and eventually break down.

– Second: Noise

As any homeowner knows, adding more power means more noise. And some people find this annoying in their RVs as well as their homes. Make sure that whatever new water pump system you purchase has been designed for quiet operation; otherwise, prepare for complaints from family members when they’re trying to rest or watch TV late at night.

– Third: vibration

The additional power draw associated with higher-output pumps can sometimes cause vibrations throughout an RV’s chassis; these vibrations might even result in damage over time if left unchecked by careful engineering practices during manufacture/assembly/installation stages before sale/delivery takes place at retail outlets such as Camping World Superstore locations across North America. So keep those things in mind when shopping around for replacement pumps.

– Fourth: power consumption

The more powerful pumps consume more energy than their less capable counterparts; therefore, one should also be careful when selecting between different models available on the market today so as not to overspend unnecessarily.

How Much Does A Typical Rv Water Pump Cost?

The cost of a water pump varies greatly depending on the type and size. The following are some common factors that affect the price:

  • Brand name
  • Size
  • Location – new or used, from a dealer or private seller, etc.

If you buy a new pump, it will cost more than one bought from a private seller. If you buy one from an RV dealer and have them install it for you, then the price will be higher than if bought and installed it by yourself.

An old pump may fail due to excessive use or old age (pumps have specific lifespans before needing replacement), but there are also many other reasons why your pump may fail suddenly without warning. For example, if there was no maintenance performed regularly on your RV’s system, then this could lead to severe damage being done when they finally do break down unexpectedly. 

The fourth and final point we’ll discuss today deals with how much water flow is necessary when operating your pump. A smaller pump size might be sufficient if all you’re doing is topping off a gallon jug at home while waiting for dinner to cook; however, it would not be enough if there were more demand on the system such as filling up an entire swimming pool.

Make sure that whatever sized replacement unit you buy can handle whatever task needs performing by checking its specifications carefully.

How Long Does A Water Pump Typically Last?

The average life span of RV water pumps is around 5 years. This is a rough estimate, but it’s not far off the mark. As with any piece of machinery that has moving parts and high-pressure pumps, you’re going to have to maintain your pump regularly to keep it running properly.

A good rule of thumb: If you notice that your existing pump is giving out more than normal, or if you’re getting strange noises from its operation, this may indicate something is wrong (and should be addressed). But generally speaking, it’s best to replace your pump before any major damage occurs.

If you’re having trouble replacing your RV’s water pump or don’t know how often it should be replaced, it’s best to consult with an expert.

How Big Of A Water Pump Do I Need For My Rv?

How do you know what size water pump is right for your RV? The answer is simple: You have to know how big of a water pump you need.

Here’s the formula:

  • Subtract the number of gallons per minute (GPM) that your current water pump pulls from the number of gallons per minute that’s recommended by the manufacturer in order to determine whether or not you have enough power. If not, then you’ll need to upgrade.
  • For instance, let’s say your current water pump pumps out 3.5 gallons per minute but the recommended amount for your RV is 4.

If so, you’ll need to upgrade to a 4.0 GPM water pump in order to keep up with the demand for more water pressure. This will allow you control over how much power is needed when using the RV’s shower or sink faucets as well as other appliances such as dishwashers and washing machines.

Can You Increase Water Pressure In An RV?

You can increase water pressure in an RV by increasing the size of your water pump, or you can increase it by increasing the size of your water tank. If you have a small tank, then you might want to go with option 1. However, if you already have a big enough tank but still want more pressure, then option 2 is for you.

You can also increase water pressure by changing out the hose that connects from your showerhead to the faucet. The wider this hose is, the better. 

Is It OK To Leave Water Pump On In RV?

You can leave the water pump on in an RV and it will not cause any harm. This is the way that most RVs are designed to work. You will need to be careful when you move your RV if there is electricity running through it and if you have a propane heater or stove turned on, but otherwise, it’s fine to just let things run as normal.

If you have an older RV with a generator, then this may not apply, as some generators automatically shut off when no one is around. If your generator has such a feature then you should make sure that it is turned off when not needed, especially if there are expensive electrical appliances connected like televisions or microwaves (which use more power than lights do).

Should I Turn My RV Water Pump Off At Night?

The answer is yes. I would recommend turning off your RV water pump at night. This will save you money, energy, and time.

In case you’re wondering why it matters if you turn off your water pump or not, here are some reasons:

  • Turn off the RV water pump when you have no need for it to run. If the tank is full of potable drinking water, there’s no need to keep pumping fresh water into it if nobody in your party needs any more right now. The same goes for sewage disposal, if nobody needs to use a toilet or shower until morning (or later), there’s no reason to keep sending waste down into septic tanks that aren’t being used at this moment either. You can always turn them back on later if needed; just wait until everyone wakes up again before setting their timers again so everyone has access once morning comes around.
  • Save money by reducing how much propane gets used up by running these appliances unnecessarily when they don’t need to be running at all times throughout each day.

How Long Do RV Water Pumps Usually Last?

An RV water pump is supposed to last for years and years, but that doesn’t mean they don’t break down. The average life expectancy of an RV water pump is anywhere between 5 and 10 years, depending on where you live, how often you use your RV, and what kind of model you have.

If you’re noticing leaks underneath your rig or if the pressure isn’t consistent when filling up a tank, it’s probably time to replace your old one with a new one.

How Often Do RV Water Pumps Need To Be Replaced?

If you’re not sure how long yours has been in there, then check out its serial number. A quick internet search will tell you how old it is based on its number. You can also look at where the manufacturer’s logo was stamped into the metal housing, this will be toward the top of each unit.

This should give some indication about whether it’s worn out already or not yet due to wear-and-tear over time which could cause leaks inside so make sure all connections are tight before purchasing replacement parts if possible

Especially gaskets since they tend not to stay put once they start getting older outside elements like sun exposure heat up causing them to fall off inside pipes causing damage when used again later down the road.


We hope this article has answered your question about whether or not you can put a bigger water pump in your RV. As always, we suggest talking to a mechanic before making any decisions about what kind of upgrades to make to your vehicle.

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