I noticed in the owners manual it says to "• Close the drain valve on the suction plumbing." as part of the initial startup procedure to dissinfect the hot tub... my question is, where is the drain valve on the suction plumbing?
hey guys, I have a 2hp dual speed super II pump. Paired with an older hayward c3000 series quad cartridge filter. I was having issues with it not filtering so the filter elements have been replaced as well as the bottom manifold that was cracked. After doing that whenever I try and vacuum out...