Need to Fix my plumbing issue

[Zylumn]

Drill out the holes larger to accommodate an one inch hole.

I am pumping 450GPH through 2 x 3/4" bulk heads with no problem and could go quite a bit bigger like 600+ GPH.
Kevin

[jslaney]

You dont specify that you tapper them up. The actual hole may only be 3/4 inch but if you taper them up to a 1 1/2 inch pipe right after the hole you will be able to pass a lot more flow.

I guess you still have to drain the tank to do this.

Jon

[spikehs]

Originally Posted by jslaney

You dont specify that you tapper them up. The actual hole may only be 3/4 inch but if you taper them up to a 1 1/2 inch pipe right after the hole you will be able to pass a lot more flow.

I guess you still have to drain the tank to do this.

Jon

yah i was going to taper it up to 1 1/2" but couldn't find the plumbing parts yet.. i figure thats my best solution... would it increase the flow considerably if I doubled the diameter after the hole?

[spikehs]

anyone know where the best place in calgary is to get some plumbing like that? Tried the revy in weshills/macleod, and the home depot by chinook... thanks.

[mark]

Playing with the RC drain/overflow calculator, the 3/4" is good for 330gph, 1"-600gph, 1.25"-900gph, 1.5"-1300gph.