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Old 11-14-2014, 05:37 PM   #11
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Right ok, I have been reading up about herbie drains but I only have two holes in the tank so I would have to run the return over the top of the tank which is something I don't want to do, I want the system to be contained. Upping the size of the overflow might help but not sure. I'm also going to try the ball valve thing you suggested. Cheers
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Old 11-14-2014, 06:11 PM   #12
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I think I will go with the herbie method, I will drill another hole for the return. I understand the method and how to do it but I don't understand one thing. If the power to the return pump shuts off what stops the main overflow from siphoning and flooding my sump? Do I need to place the main drain about 2inch below the emergency drain? All a it confusing. Cheers
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