Hi, Mike,

I would envision the suction side plumbing something like this...two 1.5 lines, contolled each by a ball valve, coming from the skimmers and the booster line, teeing into a 2"line at least 12" long that goes into your pump. Even if you have to come back down to a 1.5 entrance into your pump, that 2' tee will reduce some turbulence and, therefore, TDH.

The downside is that you would have an open suction line on the side of your pool that could grab somebody and could actually be a little dangerous if, for some reason, you shut off the skimmer suction line. You can buy a little plastic guard to screw into that booster line which will greatly help, but not eliminate, that issue.

If you really wanted to get complex, you could tee off that booster line with some more plumbing so it could be controlled as a suction side or pressure side line. I doubt that's a great idea, but it could be done if you needed to.

Mike, if you can get 50gpm through there, that's 24,000 in a 8 hour period which I think gets you right about where you want to be. Others smarter than me may nix this whole idea but it seems to me it would work nicely.

Dave S.