How do I keep a sump quiet?

Discussion in 'Filters, Pumps, etc..' started by Kadoogen, Jul 9, 2014.

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  1. Kadoogen

    Kadoogen Flamingo Tongue

    Joined:
    Feb 14, 2011
    Messages:
    120
    Location:
    Orlando
    All of the herbie overflows are with two drilled return holes, I only have 1 drilled for a return and 1 for a overflow. Can you do a herbie with only 1 return?