How to Fill RV Water Heater

How to Fill RV Water Heater: A Step-by-Step Guide

Having a fully functional water heater in your RV is essential for a comfortable and convenient camping experience. However, knowing how to fill and maintain your RV water heater can be a bit daunting for beginners. In this article, we will provide you with a step-by-step guide on how to fill your RV water heater and address some frequently asked questions about this process.

Step 1: Prepare Your RV Water Heater

Before filling your RV water heater, it’s important to ensure that it is properly prepared. Start by checking the water heater bypass valve, located near the water heater tank, and ensure it is in the correct position for filling. This valve allows you to isolate the water heater from the rest of the RV’s plumbing system.

Step 2: Gather the Necessary Tools and Materials

To fill your RV water heater, you will need a few tools and materials. These include a water hose, a water pressure regulator, and a funnel. Make sure you have these items accessible before you begin the filling process.

Step 3: Connect the Water Hose

Connect one end of the water hose to a water source, such as a campground water hookup or a water jug. If you are using a campground water hookup, it’s important to use a water pressure regulator to prevent high-pressure water from damaging your RV’s plumbing system. Attach the other end of the water hose to the RV’s city water inlet.

Step 4: Open the Hot Water Taps

To prevent airlocks, open all the hot water taps in your RV, including the shower, bathroom sink, and kitchen sink. This will allow air to escape from the water heater and ensure a smooth filling process.

Step 5: Fill the RV Water Heater

Locate the drain valve on the RV water heater and ensure it is closed tightly. Place the funnel in the opening of the water heater’s fill port, usually located on the outside of the RV. Slowly turn on the water supply, allowing the water to flow into the water heater. Keep an eye on the water level and stop filling once the water starts to overflow from the fill port.

Step 6: Close the Water Heater Bypass Valve

After filling the water heater, make sure to close the water heater bypass valve to allow the water to flow through the heater and provide hot water to your RV’s plumbing system.

Step 7: Check for Leaks

Once the water heater is filled, inspect the area around the water heater for any signs of leaks. Look for water dripping or pooling around the connections and valves. If you notice any leaks, tighten the connections or replace any faulty parts.

FAQs about Filling RV Water Heaters:

Q1: How often should I fill my RV water heater?

A1: You should fill your RV water heater whenever you are setting up camp or whenever you are running low on hot water.

Q2: Can I fill my RV water heater with cold water?

A2: Yes, you can fill your RV water heater with cold water. The water will be heated by the RV’s water heater before it reaches the hot water taps.

Q3: Can I use a garden hose to fill my RV water heater?

A3: While a garden hose can be used to fill your RV water heater, it’s recommended to use a dedicated drinking water hose to avoid any potential contamination.

Q4: How long does it take to fill an RV water heater?

A4: The time it takes to fill an RV water heater will depend on its size and the water pressure. On average, it may take around 10-15 minutes to fill a 6-gallon water heater.

Q5: Should I drain my RV water heater before filling it?

A5: It’s not necessary to drain your RV water heater before filling it, unless you are performing maintenance or winterizing your RV.

Q6: How do I know if my RV water heater is full?