|
OK, here's what I do: drain the water heater and bypass it. Drain and pump all the water out you can. Empty your holding tanks. Hook up the compressor, set at 40psi, and blow it out thourogly. Using the winterize suction hose, pull one gallon into the lines, opening one valve at a time until it just runs pink. No more than that or one gallon won't be enough. Hook up the compressor again and blow everything out again, letting the pink stuff run down the drains. You're done! Anything wet left in your lines will be the pink stuff. No water anywhere, it all having been displaced by antifreeze. Your P-traps will be full of the same. I've been through 5 Rvs in 40 years in Northern Utah (down to - 10 or so) and I've never had a single thing freeze. Ever.
|