Hi. New here. I have an SV 24 in sump skimmer in 8" of water with a mag 12 pump. My problem is my skimmer was running great skimmate just a little wet. Then started producing lots of bubbles. The body of the skimmer is full of bubbles all the way to the bottom. I have opened the gate valve all the way open still all bubbles. What is going on ??
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