Monday, November 28 Winterization Checkup

This past Saturday, I winterized the water lines to the garage. The previous Saturday, I blew out all the irrigation lines. Today, Wally (irrigation) called and said he was in the area and wanted to stop by and check out the irrigation system. I told him I had already blew the lines out but he was certainly welcome to stop by and check it out. He arrived and said everything looked good. Whereas I purchased the plastic insert for the back flow preventer, which has a tap to connect to a compressed air source, Wally said he normally just hooked up to one of the cocks on the body of the preventer itself. He normally leaves the iron back flow preventer in place through the winter. He did suggest leaving water inlet and outlet ball valves one-half open and partially opening the cock on the inlet side of the preventer. I told him I used my high pressure low volume compressor instead of the low pressure high volume source recommended by Rain Bird. He said that was fine as long as I had air blowing out each of the heads, which I did.