How to Use a Water Pressure Regulator in Your RV the Right Way

Hooking up to unknown water sources at campgrounds can put your plumbing at risk. Learning how to use a water pressure regulator in your RV the right way protects your hoses, fittings, and interior water system from high-pressure damage.

Why a Water Pressure Regulator Is Essential

Campground water pressure can vary wildly—some sites may supply over 100 PSI, which is too much for most RV plumbing. High pressure can cause:

  • Burst hoses
  • Leaking faucets or toilets
  • Damage to water heaters and pumps

Using a water pressure regulator ensures water flows at a safe, consistent PSI, typically between 40 and 60.

Visit Daisy RV if you’re unsure what kind of regulator you need for your specific RV setup.

Choose the Right Type of Regulator

There are two main types of RV water pressure regulators:

  • Fixed regulators – Pre-set to a safe PSI (usually 45 or 55)
  • Adjustable regulators – Allow you to set and monitor pressure with a built-in gauge

For greater control, adjustable regulators are ideal. Be sure to choose one made of brass for durability and safe drinking water use.

Daisy RV can help you select and install a high-quality regulator if you want a long-lasting solution.

How to Install and Use the Regulator Correctly

To use a water pressure regulator in your RV the right way:

  1. Attach the regulator directly to the campground spigot, not the RV inlet
  2. Then connect your hose to the other side of the regulator
  3. Turn on the water slowly and check for leaks at the fittings

This setup protects the hose itself, not just your RV’s plumbing.

Use a washer filter or screen in the regulator to help trap debris and prolong its life.

Monitor Water Pressure While Hooked Up

If you’re using an adjustable regulator with a gauge, keep an eye on pressure throughout your stay. Some campgrounds may fluctuate between day and night.

Also, avoid running multiple high-demand appliances (shower, washer, faucet) at the same time, as this can strain your plumbing system.

Need help with pressure testing or upgrades? Schedule with Daisy RV for a full water system check.

Store and Maintain Your Regulator Properly

After each trip:

  • Disconnect the regulator and store it in a dry, padded space
  • Inspect the screen and connections for mineral buildup
  • Soak in vinegar if needed to remove hard water deposits

Proper care helps your regulator last season after season—and prevents issues while on the road.

Knowing how to use a water pressure regulator in your RV the right way protects your investment and gives you clean, reliable water wherever you camp.

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