Everything You Need to Know About RV Water Pressure Regulators

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If you’re a full-time RVer or even just like to take your RV out on weekends, you know the importance of water pressure. Without it, there’s no way to enjoy a hot shower or wash dishes! One important device you need to maintain water pressure is a water pressure regulator. In this blog post, we’ll give you all the information you need about RV water pressure regulators so you can keep your travels stress-free!

RV Water pressure regulator Camco HERO

What Is a Water Pressure Regulator?

Water pressure regulators are devices that control the water pressure in your RV. They’re usually installed near the water source, such as a water spigot or water connection at an RV campground. This is also called being connected to city water. The regulator reduces the water pressure from these sources to a safe level for your RV’s water system. This is important because high water pressure can damage your RV’s pipes and fixtures.

Some RV water pressure regulators have a water pressure gauge (like this one) to measure the water pressure going to your RV. It’s important to check both gauges regularly to make sure that the water flow pressure is within the safe range for your RV.

We have used the Camco brass water pressure regulator on our camper for years with no issues. It is one of the more inexpensive RV accessories out there and it does a great job.

How to Hook Up A Water Pressure Regulator

If you’re going to be using your RV at a park or campground, you’ll want to install a water pressure regulator. Most campgrounds and parks will have water hookups available, but the water pressure can vary greatly. Depending on the water supply source (ie well water vs city water), you might find that the water out of the spigot has low pressure or very high pressure.

A water pressure regulator will help ensure that the water pressure in your RV stays within a safe range, no matter how high the water pressure is at the campground.

If you’re not sure how to hook up a water pressure regulator, don’t worry! It’s actually quite simple.

  1. First, locate the water inlet on your RV.
  2. Next, take the water pressure regulator and screw it onto the water source (ie spigot).
  3. Connect your water hose from the RV water inlet to the water pressure regulator.
  4. Turn on the water from the source (spigot).
  5. Open the water valve. You should now have regulated water pressure in your RV!

Be sure to check for any leaks from the hose, connections or inside the camper. Turn off all faucets and listen for running water.

Be sure to check the water pressure regularly to make sure it is staying within a safe range. Too much water pressure is definitely not a great thing.

Water pressure regulator on spigot

When to Use a Water Pressure Regulator

It’s important to use a water pressure regulator any time you are hooked up to a water source, such as at an RV campground. This will help ensure that the water pressure in your travel trailer stays within a safe range.

A safe range for your trailer’s water pressure is usually between 40 and 60 psi. Some modern fifth-wheel campers can handle up to 100 psi. But most experts recommend that you stay between 40-50 psi, and don’t go over 60.

Anything above or below this range can do damage to your RV’s water system. Too much pressure can cause leaks or burst pipes. That is not a situation you want to deal, especially not while you’re on vacation in your RV!

You can also use a water pressure regulator if you are filling your RV’s fresh water tank from a water source, such as a water hose at a campground. This will help prevent the water pressure in the hose from damaging your RV’s water system.

If you are using an RV water filter, it is important to use a water pressure regulator before the water filter. This will help ensure that the water pressure going into the water filter is within a safe range.

If you notice that the water pressure is getting too high, turn off the water pump and close the valve. You may also need to adjust the water pressure regulator, if it is adjustable, to reduce the amount of pressure on the water coming into your RV.

What Causes Low Pressure in an RV?

If you notice that the water pressure in your RV is low, there are a few possible causes, as well as some ways to fix it.

First, check the water pressure regulator to make sure it is set to the correct psi for your RV. If it is not, adjust it accordingly.

Next, check the water filter, if equipped, to see if it needs to be replaced. A clogged water filter can cause low water pressure.

If you have a water softener, check to see if it needs to be regenerated. A water softener that is not working properly can also cause low water pressure.

Finally, if you are on tank water instead of city water check the water pump to make sure it is turned on and working properly. If the water pump is not working, the water pressure in your RV will be low. The pump is generally located near your freshwater holding tank.

If you still can’t get the water pressure in your motorhome up to a safe level, you may need to call a plumber (or campground maintenance if you are camping).

A plumber can help identify the problem, make any necessary adjustments and get your water pressure back to normal.


I hope these tips help you understand all about your water pressure regulator, why you need one, and how to use it. Adding a water pressure regulator seems like a small thing, but it can really save you from many future problems!

If you have any questions about using a water pressure regulator, be sure to ask an RV expert, such as a local dealer/repair tech. They will be able to help you ensure that your RV’s plumbing system stays safe while you’re on the road. Happy travels!


RV Water Pressure Regulators PIN

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