Hello all. Second thread here. I started one in regards to valve ID: valve-id-identifying-my-valves-t29967.html
It seems when I turn my main drain/skimmer valve all the way to main drain pressure drops to zero and the basket in front of pump drains. So I haven't kept it there for more than a few seconds. My question is can I turn skimmer completely off and just keep main drain running. If so what other valves need to be on or off.
Thanks for all the helpful posts.