[slief]

Originally Posted by Jay Ellul

I have my DC150 about 15mm deeper in the water than max recommended. I seem to get best operation this wat with the pump nozzle screwed out about 10mm

Is this strange? Should I worry about it?


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Nothing to worry about there. There is no spot on the nozzle that works for every tank. Each tank is different which is why the nozzle is adjustable. So keep it where it’s at if it’s working well for you. The deeper the sump, the more the nozzle would need to be opened as well so I’m not surprised that you have it out that far. That just reduces water flow into the skimmer and increase air which in turn lowers the water level inside the skimmer and helps compensate for the deeper sump level.