I think you are right.Looks like a sump with fx5 for the return pump. Kinda an odd way to do things I suppose
Perfectly right, also causes more stress on the impeller but I guess its a more effective way of filtration depending on how much the flow was diminished.I think you are right.
Since the water is being pulled from a sump, and not a siphon from the tank I would think the return rate is awful low. Am I right in my thinking?
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