I decided to connect my 90gal tank in my basement to my 240 gal tank, each have thier own sump i use a 1 inch pvcp pipe for drain from my 240 gal sump to my 90 gal tank im using mag drive 2400 from my basement as a return to my 240 gal tank, my problem is the drain from my first floor to my basement is making a gurgling noise, how do i get rid of the noise? :grumpy:



