Help with No-Hub Couplings

[soupa2]

Hi all, recently i started to setup my new tank and i hate it to cut the PVC from the bulkhead to the 90* of the connection to sump.. the drainage sides are fine with no leaks.. the pressure sides are leaking while pump is turned on.. while the pressure side doesn't leak when the pump is off.. i don't know what or where is it leaking from.. only the 3/4" pressure side (BLACK No-Hub) is leaking.. i don't want to over tighten the strap.. what you think??

 

[flukekiller]

What I would do is turn the pump and slowly tighten each clamp until the leak stops

 

[soupa2]

When u have thread where lock nut tightens the bulkhead what you do with the no-hub?? U would put some Teflon tape then tighten the no-hub coupling straps??

 

[deeda]

I don't believe you can get a snug enough seal when using No-Hub couplings on threaded fittings even with teflon tape.

 

[soupa2]

well all straps are tighten down and without any leaks..