Pool start up question. At the bottom of my skimmer, I have a rubber plug with a wing nut, which I removed. There also appears to be a plastic cap held in place by a Phillips screw. Does this cap need to be removed?
Pool start up question. At the bottom of my skimmer, I have a rubber plug with a wing nut, which I removed. There also appears to be a plastic cap held in place by a Phillips screw. Does this cap need to be removed?