what size compressor to winterize

jalichty wrote:
I would doubt that the residual water in the lines, after blowing them out, would be enough to freeze, expand and break or rupture a line. Even if it's in a curve in the line, it would expand up both sides as it freezes and I don't believe it would break the line. We have blown out our FW for 20 years or so and just put antifreeze in the P traps and, I had one thing break, an outside kitchen line broke because the dealer didn't open it up when blowing the FW lines out after they did some repair and I didn't do it either when I got home. I had never heard of having the faucets closed until the system gets pressurized up and then opening the sequentially to get them all blown out. I guess as long as the air pressure isn't too high, should be ok. Also, don't open the low point drains, I have three, until after you have blown out the rest of the FW, at least I don't do that. It would seems to me that doing this would keep you from getting all the air pressure to the fixtures that are a ways from the low point drains, but I could be wrong.