Bulkhead question

[OceanBlue808]

Hey yall, I was wondering if ABS bulkheads are good for a 40 gallon breeder or if I should go for schedule 80 bulkheads. I'm planning to get three 1 inch bulkheads and one 3/4 inch for the return. Also, would you use threaded or slip bulkheads?

 

[JoshH]

ABS Schedule 40 bulkheads are just fine for all plumbing applications related to our tanks, 80s are nice, a little easier to work with but absolutely overkill. If you do get ABS slip bulkheads be sure to use the proper glue for ABS/PVC plumbing. Personally I use threaded Bulkheads with the proper thread sealant this allows me to easily replace bulkheads if something fails with them. Inside overflows I use slip/thread bulkheads with the slip being on the flange side. This allows for quick removal of the overflow plumbing inside the overflow box for cleaning or adjusting.

 

[Hitman]

Schedule 40 is just fine. I prefer the glue in slip as the threaded ones have leaked on me.
Here’s a bulkhead sizing chart from BRS to help out. Schedule 40&80

 

[Crabs McJones]

Used 40 on my 40, worked great