I purchased a Jebo 520 protein skimmer for my 90 gallon tank. I'm putting it in my 30 gallon sump that I'm almost finished with. It is supposed to be a venturi style skimmer. I had the air hose connected to the back of the pump where I thought it was supposed to go. When I would turn on the pump, I was getting a great tornado shape of water inside the skimmer, but NO air bubbles. Water was actually coming out of the end of the air hose that is supposed to sit above the water. I moved the hose to the connection where the water enter the skimmer from the pump thinking this was the problem. I got the same results. Water runs up the air hose instead of pulling air into the water. Is there something I'm doing wrong? I'm frustrated!
Problem #2: My return pump is aparently pushing too much water for my overflow to handle. How do I restrict the return pump so that it reduces the amout of water being pumped into the tank?
Thanks.