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I have a question about my main drain. It is plumbed up to my skimmer instead of directly to the pump. The pool is an IG fiberglass and my best guess is that it was built about 25 years ago. Will a drain set up like this still get some flow due to siphoning action when the pump is running? I've tried brushing small debris towards the drain and I don't ever see anything move into it. I know it's not plugged because water will siphon into the skimmer if I block the opening and let the pump take out the water in the skimmer below the pool water line. Is this a normal configuration for a main drain?
I have a question about my main drain. It is plumbed up to my skimmer instead of directly to the pump. The pool is an IG fiberglass and my best guess is that it was built about 25 years ago. Will a drain set up like this still get some flow due to siphoning action when the pump is running? I've tried brushing small debris towards the drain and I don't ever see anything move into it. I know it's not plugged because water will siphon into the skimmer if I block the opening and let the pump take out the water in the skimmer below the pool water line. Is this a normal configuration for a main drain?