Backflow causing noise in Phosban 150
there's this buzzing noise coming from the pump for the reactor and i hope someone can chime in one this.
here's the rest of the story: i bought a Phosban 150 and a Marineland Maxijet 600 pumps along with some black vynl hosing for connections. i tested the reactor and saw no leaks. i tested the pump and it worked like a charm. but when i connected the two equipment together with the hose, i can hear a rattling noise coming from the pump. i immediately took everything apart and saw nothing out of the ordinary. i suspect that because of the ball valve that decreases the normal output of the pump, there's excess water that flows backward into the pump and the noise is coming from the impeller. does anyone share the same experience?