I have a question about my two valves. The one on the left is for my two skimmers. Right now I believe it’s set for equal suction between the two. The valve on the right is my main drain. I’m not sure where this needs to be. For the past couple of summers I haven’t noticed any issues. I had a pool company come out a few weeks ago to install a vsp. Since then it seems my skimmers aren’t working as good as they used to. What would be the optimum setting? In the picture do I have the main drain completely turned off giving 100% to the skimmers? Should I adjust it to where the off is pointing down or somewhere in the middle? I’ve messed around with it but still can’t tell. Thanks!