V VIVVIV In Memoriam Apr 29, 2019 #1 Hi, My return from the sump is just the pump and pvc tubing, all cemented in place. Yet I still get small to micro bubbles at the tank output! What could be causing this? Would it help to replace everything with vinyl tubing? Thanks
Hi, My return from the sump is just the pump and pvc tubing, all cemented in place. Yet I still get small to micro bubbles at the tank output! What could be causing this? Would it help to replace everything with vinyl tubing? Thanks
Vinny Kreyling Premium Member Apr 30, 2019 #2 Any chance the water level is too close to the pump & it pulls from the top?
mcgyvr New member Apr 30, 2019 #3 Skimmer output? Water falling into the return pump area? Cavitation?
