I just key the compressor to about 25psi and connect it with a blow out adapter i got a nice brass one from wal mart for just a few dollars and open all of the valves which for me include the drain on the electric water heater the hot and cold on the sink and the hot and cold on the.
Blowing out rv water lines with air compressor.
Smaller compressors are fine for winterizing your rv.
Ideally you should use a 20g tire inflator to winterize the rig s water lines and make them safe from blowing out due to freezing.
Many consider this to be the easiest method but you ll need an air compressor as well as a blow out plug you can buy a blow out plug at an rv supply store.
Winterize rv motorhome boat camper and travel trailer.
Turn the air compressor on a low pressure setting and slowly increase pressure.
When using an air compressor to winterize you don t need to blow out the water with force.
However if you use this method you can t be absolutely sure that every drop of water is out of the lines.
One way is via a small pump that pushes rv antifreeze through everything.
Try getting one that holds at least 2 us gal 7 6 l of air so you have enough to completely flush out the lines in one go.
Connect the blow out plug to the city water inlet not the fresh water tank.
Conclusion choosing the right air compressor for your recreational vehicle isn t easy but it can be if you know what to look for in the unit including size quality and accessories among others.
Get a portable air compressor to blow air into the water lines.
Do not exceed 50 psi.
There are various ways to ensure you have no water in your lines.
Air compressor quick connect plug to male garden hose faucet blow out adapter with valve lead free brass 4 8 out of 5 stars 820 17 99 17.
I use air to blow out my lines.
Turn on the compressor and let it run until all water is blown from the faucets and drain valves.
Adjust the air compressor to no more than 30 psi to avoid damaging the water lines.
Pick one that also has an adjustable pressure gauge so you can control how much air gets pumped into the rv.
Connect the air compressor hose to the blow out plug.
The con with that is you have to flush out your system really well come spring so you don t end up digesting antifreeze in your drinking water.
Thread the blow out plug into your rvs city water inlet and attach the oil less air compressor to the brass quick connect.
The system in a email protected is very small and it takes little time.
Once your lines are empty remove the rv blow out plug with quick connect and replace the cap onto your city water inlet.
Rvs have low point drains in their water system.