Originally Posted by Bruce Wray
9Pressurize the water tank to 40 lbs. Open one faucet at a time to clear residual water from the lines. Repressurize as necessary, opening the toilet flush valve last.
Do you pressurize the water tank so that the air goes through the pump or do you pressurize the line that hooks to a pressurized external water source that bypasses the pump using a male hose to schrader valve adapter?
The reason I ask is that in a previous trailer that I owned, I used compressed air to blow out the system and the pump must have still had just enough water in the diaphragm chamber to wreak the diaphragm that was made of unobtainium. That cost me a new pump. In subsequent years, I removed the pump each winter and had no other problems. When I winterized my Escape 19 for the first time last winter, I used the antifreeze in the water lines method and although it worked, as a previous poster mentioned, it is taking a long time for the taste and smell of the anti-freeze to work its way out of the system. I am ready to go back to using air but I want to do it perfectly.