Blowing out water lines
I am hesitant about just blowing out my water lines to winterize. How does that affect the water pump when it has a backflow valve? I am afraid the water pump won't be winterized. I had an RV salesm...
Forum Discussion
Ivylog wrote:
Drain the water tank, water heater, and low point drains, run the pump until it sucks air, put contaminated air:S on the system at full pressure, leave one faucet slightly open to regulate pressure, open other until no spray comes out, and put some antifreeze in the P traps. You can even use a good 12V compressor, but it takes longer and no need to leave one faucet slightly open. You want a good surge of air to get all of the water out.
Sure you want to put 150 lbs of air pressure in your water lines? NO you don't. The manual calls for no more than 30 psi. I used 25. You don't need to leave a tap open to start. Just hook up. Set the aircompressior to 25 lbs, turn it on, go in, go from tap to tap turning the valves. Letting the air push out the water.
