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Use this blow-out plug to remove water from your RV's water lines before putting your RV in storage for the winter. Attach plug to your RV's city water inlet and inject air through the valve to blow out any water in your plumbing.
Features:
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're going to be taking a look at the Valterra RV Blow Out Plug. This plug allows for easy blow out of excess water from fresh water plumbing before winterizing. It's made from a durable plastic construction. It's white in color, and it's very easy to use. It's designed to fit a standard city water connection. What you would do is you simply screw the blow out plug into a city water fitting on the side or outside of the unit, turn off your water pumps and drain the freshwater tank.
Then you'll need to open all the RV faucets and the low point drain, and when the drain stops running you can close it up. Then close all the faucets but one and apply compressed air to the blow out plug fitting until the water stops running. You would repeat those steps or that last step with each faucet and remember to close the previously drained faucet. Be sure to include the toilet valve by pressing the foot pedal or handle. After you've done this, you're now ready to winterize your unit. That's going to do it for today's look at the Valterra RV Blow Out Plug..
Ratings & Reviews

Mike L.
11/5/2025
Let me look into that for you!

Williame G.
1/7/2022
worked very well used to winterize our shasta trailer.

Benny
5/5/2025
Use product regular and have never had an issue. Works great. Never had an issue with Etrailer or its products

Steve
8/8/2023
Great way to quickly and easily blow out the water lines in preparation for winter. Also not as messy as antifreeze.

Richard
10/23/2022
works great saves on rv anitfreeze that i still use double protection
Info for this part was:
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Joe
10/12/2026
Great choice