i setup a sump on a 120 gallon reef with a 1290 gph
pump, the overflow is hanging from the side and the pipes are going to the sump under the tank, my question is how come when i set it all up, and started running it, you can hear the water being sucked down the overflow pipe, its really loud and annoying, is there anyway i can get rid of it? Is there something im missing?
thanks any posts will be appreciated.
sump size is 20 gallons
piping is 1"