Clearance for estopp 300 gph overflow

[Mgus]

Any one know how much space you need between the tank and wall for the 300 gph overflow. Gonna try to move my tank forward tonight. Only have 2 inches behind it now

[Twistofer]

I give at least 6-7" between the wall and the tank. It gives you room to work.

[MKD]

I would say more and about 10" because you'll give couple inches between overflow and wall to avoid water damage or room to work on plumbing. it's just me.

[Mgus]

I was in a rush when I set up the tank didn't leave nearly enough room. I might put it on the side there's a foot of space between the side of the tank and wall. I drained it down about 70% the other night and couldn't budge it