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Blowing out your RV water lines for winter can be messy or risky if pressure gets too high. This kit connects to your air line and regulates pressure to protect your plumbing. A built-in gauge lets you keep an eye on it while you clear the system.
For use with compressed air systems only Not rated for liquid or chemical transfer
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, everyone, Steven here with the etrailer. Let's take a look at our Bulldog Winch RV Waterline Winterization Kit. Folks, this is a built-in pressure regulator for a max of 100 psi. Now, this is going to make sure that you are clear of fresh water from your lines, preventing freezing during cold storage months. It has a simple hookup for your waterline hose. And that's a simple push-to-connect fitting.
And then, of course, your gauge here, again, maxing out at 100 psi. And then, of course, your airline would connect over here. Now, that's your standard airline connection, 1/4-inch air hoses. And basically what you're going to be doing is you're going to be using the nozzle or the knob here to lower and higher the pressure of the air that you're pushing through to then push out the water, cleaning out your lines, preventing freezing during those cold winter months or while you have it in storage. So again, folks, a very simple push-to-connect, very simple design, and when you're done, you can just pop everything out and put it in the storage compartment or something of that nature.
It's nice and small. Doesn't take that much space at all. If you have any questions about this or anything else on our website, etrailer.com, reach out to us, we're more than happy to assist you in any way we can. I'm Steven, thanks for watching, and have a great day.
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Dean A.
8/24/2026
Works very well. After 2 blown tankless water heaters this is an easy fix to an expensive problem-clearing lines from water freezing in pipes.