Bulkhead question for return

[shingo43]

Hi I purchased a used tank with 2 return holes drilled on the back of the tank, I want to hard plumb the return, and wonder what bulkhead/elbows should I use?

I believe the bulkhead size is 3/4"
if you can provide a link that will be great!

 

[GimpyFin]

Probably measure the hole sizes first. That will determine what your bulkhead options are up front. A 1-3/4" hole is fairly standard for 1" black bulkheads.

 

[shingo43]

Probably measure the hole sizes first. That will determine what your bulkhead options are up front. A 1-3/4" hole is fairly standard for 1" black bulkheads.

The used tank came with flex hose plumbing but I would like to convert it to hard pvc, I wonder should I change the bulkhead for pvc because the bulkheads were both threaded.

 

[DePinchGonze]

It wouldn't hurt to change the bulkhead if you don't know how old they are, that way you know the gasket is good, and you can plumb the way you want.

 

[lespaul339]

Just stay away from the ABS ones. They suck. They crack and leak. I had to replace all 3 due to failure on my tank. I went with these instead:

http://www.bulkreefsupply.com/bulkh...-side-1-3c30bc3ec05967d33995f258b184fabb.html