return plumbing

[djtuzik]

Is the return supposed to be plumed via threaded bulkdhead?

 

[tidus10]

I don't think it HAS to be anything. Honestly, slip fittings probably bond better anyways..

 

[MondoBongo]

doesn't have to be. i've used both.

if you are going threaded, teflon tape is your best friend. if not, then PVC primer and glue, along with at least 24 hours to cure is a great bet.

regardless of what i decide to use, i always include at least a true union, sometimes a ball valve, on all my return lines. that way i can adjust the pump if i need to, or quick disconnect and swap it out if i have to.

on my drain lines i usually just run the unions, no need for valves there. you wouldn't want to restrict your drain flow.

 

[KRBNSOL]

+1 it doesn't have to be threaded and the more union / valve combinations you have the more ability you have to tweak flow if needed.

 

[nuxx]

Our large tank has the returns over the back of the tank.

Our frag tank has them through the overflow via bulkheads. I now have less space in the overflow, but it looks clean...

UGH...