Do you have a ball valve on return pump? If so I agree turn it back until the water is being sucked (is that the right word? maybe syphoned) into the drain. Then start turning up the pump from there. I only had a durso once on a tank I ran for about three months so my experience with them is not the most extensive.
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- Greg
90G : Light - Tek 6xT5 | Skim - EuroReef RS135 | Flow - 2xVortech MP40W | Control - Reef Keeper 2
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