Hi, my installer put in a Hayward wide mouth skimmer. The bottom has 2 holes, one to the main drain and one to the pump. When the pump runs, all the water gets drawn from the skimmer mouth. How do I get the main drain to work? Is there a plastic elbow or anything of the sort? I can't imagine Hayward making a setup like this and not ever being able to switch on the main drain.
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