The cap idea may not be too mad. I have one in my garage, I'll drill a hole and check it out.
For me the gurgle is not too big of a deal as my sump is plumbed through a wall from my tank and sits in the utility room. I just want to eliminate it if possible.
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- Greg
90G : Light - Tek 6xT5 | Skim - EuroReef RS135 | Flow - 2xVortech MP40W | Control - Reef Keeper 2
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