MountainAir05 wrote:
after in the pump stop. Hook up your air compressor and if you don't have a adapter get one. Hook up to city water connector , 40 lbs of air pressure and open each faucet till only air comes out. If you have a drain on hot water tank, open it also till only air comes out. Put two cups of antifreeze in each drain and More in toilet keep the seal lubed. ensure you open the drain on fresh water and drain. Your are finish. Others will add to what they do.
That's exactly my process, though I put the antifreeze in the drains via the water pump. After blowing out the lines using air on the city water fitting, I flip the bypass valves on the HW heater. I hook a hose up to the input on the water pump and suck the antifreeze right out of the bottle. I run the faucets until I see antifreeze and let a couple of cups run down into the drains. I leave a bit more in the toilet. According to Dometic (I have a 310 toilet) the toilet's valve is especially susceptible to freezing. I make sure I get antifreeze in it. The whole process takes about 15-20 minutes tops.
