brianbigoats
Active Member
I just bought a used 90 gallon and while looking at it i noticed the 3 holes in the back are 1 1/2", 1" and 1/2". The former owner had the full siphon on the 1 1/2" and the emergency drain on the 1/2" which seems a little to risky for me i was thinking of going to a durso on the 1 1/2" and keeping the 1/2" as an emergency and adding a strainer on the ermigancy i am only planning on using a Vectra S1 as the return
