its the same as one drilled on bottom. yours is done that was cause someone who owned it did want to risk drilling the bottom that is usually tempered. just connect your plumbing to the bulk heads said:were can i get bulkheads the lady at lowes didnt know what i was talking about.
go to any neptunes cove or dna will carry them.. what size you looking for if it is 3/4'" bulkhead i have three i can sell for 5 bucks a piece i have extras usually if you have two overflows in one box... you run one to an external type skimmer ie das ex1 and the other one goes to sump. said:Ya its 3/4. Can i just have them both go to the sump. I already got a in sump skimmer?
Yeah both can go into the sump said:Ill message you back about the bulk heads.
They are either it is up to you said:K thanks