Originally Posted by Toby
you can get it at your local rv shop. I recommend not getting the one that looks like a tire stem that has you standing there holding it.
Yes! Get the one that the air hose will connect directly to. I also wrote 50psi max on the fitting. NOt sure why, must have read that somewhere. Then, just go through every faucet and blow them all out. Bypass the water heater - should be a fitting built in for that. Then I remove the water filter housing and also leave that off over the winter.
I like to just blow them out because it makes spring time a little easier. All I really have to do is put some plugs in, open the bypass, and I'm ready to go. Putting antifreeze in the lines is another form of insurance, and there's nothing wrong with that, either. It's just another step.
Amazon.com: Camco 36143 RV Blow Out Plug with Brass Quick Connect: Automotive