RV Hot Water Heater Bypass Valve and Drain Valve for Easy Winterization

Mod My RV

Winterizing your rig is one of the most important things you can do to protect it and ensure that it lasts for years to come. One way to make this whole process a bit easier is to install an RV hot water heater bypass valve and an RV water tank drain valve.

RV Hot Water Bypass Valve

Why do you need an RV water heater bypass valve? This valve is important during winterization because it allows you to bypass the hot water tank when blowing out the water lines or filling the lines with antifreeze, saving you time, effort, and antifreeze.

Some RVs come equipped with this valve, but if yours doesn’t have one, don’t worry; they’re super easy to install. In fact, alongside replacing an RV water heater check valve or an RV water heater gas valve, this job is one of the most common water heater DIY jobs out there.

RV Water Drain Valve

Now let’s talk about the drain valve we mentioned earlier. This RV water valve add-on is great for those who hate the task of removing the plug to empty their heater tank. It simply screws into the hole that usually holds your water heater drain plug and allows you to drain your tank with one quick turn.

How to Winterize

Begin by disconnecting the city water and emptying your entire water system by opening the water heater drain valve, RV black water valve, gray tank valve, and the RV fresh water drain valve. Once the system is completely empty, turn the knobs to bypass your water heater.

Blow Out Method

If you choose to blow out your lines, you’ll connect a blow out plug to your city water inlet, open the tap nearest the inlet and close all others, then blow air through the system using an air compressor and a tire pump tip. When the open tap squeals, stop the compressor, close the tap and repeat the process with the next tap. Continue this until all taps (including the toilet) have been opened.

It’s important to note here that you will want to ensure the RV water pump check valve is in working condition before starting, to avoid pump damage.

Antifreeze Method

Those who prefer to use antifreeze will put the winterizing hose of their onboard water pump into a jug of RV antifreeze. After switching the pump to pull from the jug and not the fresh water tank, open the tap nearest your pump and run the pump until you see antifreeze running from the tap.

Once you reach this point, close that tap and move to the next closest, repeating these steps until every tap runs pink. Be sure to run the toilet as well, and make sure to replace the antifreeze jug as needed.

Finally, turn off your pump, open one tap, and head outside and give your RV water inlet check valve a quick press. The RV water check valve tends to hold onto water, and pushing it will ensure antifreeze makes its way into the valve.

This post may contain affiliate links.

What do you think?

How much can you make renting your RV?

See How Much You Can Make

How much can you make renting your RV?

See How Much You Can Make

Similar Articles

RV On Demand Hot Water Heater – Read This Important Info…

Hot water is one of the beautiful comforts of home you can continue to have when you travel in your…

Read More

RV Ducted Air Conditioner – How To Select The Best One

If you’re traveling in warmer areas, you’ll likely want an air conditioner for your RV. It can help make a…

Read More

RV Heater – Important Facts You Need To Read

Keeping warm on the road is one of the luxuries that RV travel provides. When you hop into your camper,…

Read More

The Best RV Electric Heater – Find Out Which Electric RV Heater is the Best

Heating your RV is super important, especially if you plan on doing any fall, winter, or even early spring camping….

Read More

Having RV Air Conditioner Problems? Make Sure You Read This

There’s nothing quite as frustrating as when you’re having RV air conditioner problems. Do you sweat it out (literally) while…

Read More

RV Air Conditioner Cover & More Filter, Pump & Capacitor

The air conditioner is an important part of any RV. For this reason, it’s a good idea to have a…

Read More