Bubble Magnus 7

[Tigweldpro]

Originally Posted by Buccaneer

I have a 7 and 10" of water works perfect

Do you have a filter sock? How often do you tear it down and clean?

[Buccaneer]

Originally Posted by Tigweldpro

Do you have a filter sock? How often do you tear it down and clean?

no sock ... clean it once the riser starts getting coated with gunk maybe every cpl weeks

[sobe]

Check the venturi part on the pump where the hose connects. Make sure there are no calcification on it and clear of debris on the air side. Also as Bucaneer stated between 7"-10" of water is best. You might have to make a stand for it if water is too deep. Any deeper it starts to over flow in mine. I have a NAC9

Post a picture of your skimmer it might be missing something if it is second hand

[Tigweldpro]

I got a used BM7 for my 90 gallon, did a vinegar bath scrubbed it clean. After putting in the the sump with dial on "max" it began to overflow right away. Did some more googling and found that a drop of fish oil in the skimmer neck was the cure. sure enough put 1 drop omega 3 fish oil and the bubbles dropped immediately ,over the next 12 hrs the bubbles slowly rise and then start to produce skimmate.

Still fully open dial "max" and producing good skim as the skimmer gets dirty slowly close the dial so it keeps producing good skim.

Currently In 10 3/8" deep water

[vwillard]

What an interesting idea! I'll try it tonight. I've got it wide open, and have had it that way for three days--Still overflowing even when I turn it on Minimum -- and after a deep clean--and only 5 inches deep.