General Reef Discussion
Those of you that have a gl*******s 1500 gph overflow (or have any input to add), is there any reason to put ball valves on the 2 1.5" overflows? I'd rather not if I dont have to but I'd rather know some pros and cons before plumbing. I have a 75 gal dt, 29 gal sump and mag 9.5 return. Thanks!