I am getting bubbles in both the sump and refuge. I have about 100- 200 gph going into the refuge and the rest goes straight into the sump. Is it normal for the overflow to bring this much air down with it? I have never had a sump before. No foam over the pump. Just the plastic that it came with. Can you buy faom to go over the plastic or do you just wrap some around it?
Cheers,
Al
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