Now I need overflow help

[Quinster]

Here are the mods I did to my DIY Durso to fix both the varying flow issue and the snail issue...

http://smg.photobucket.com/albums/v6...Anch=imgAnch11

http://smg.photobucket.com/albums/v6...Anch=imgAnch13

http://smg.photobucket.com/albums/v6...Anch=imgAnch14

A John Guest valve on some 1/4" line to control the air flow, and a slotted piece of PVC to keep the snails out.

[Murminator]

I will try adding an air valve and a DIY snail guard looks like a good idear

The bulkheads are 1" the pump is a mag 9.5 950GPH with about a 4' head so idunno about 800ish GPH

[TheReefGeek]

How many 1" bulkheads are draining?

Have you tried throttling back the pump to see what happens?

[muck]

What size piping is your "durso" made out of?

[Murminator]

Originally Posted by muck

What size piping is your "durso" made out of?

All plumbing is 1" except the drain which is 1.5" there is only 1 drain and 1 return. throttling back the pump doesn't make a difference

[muck]

The durso pipe needs to be larger than the bulkhead size.

ie. 1" bulkhead --> 1¼" or even 1½" standpipe

[TheReefGeek]

Hmmmm, durso's are usually 1/4" - 1/2" oversized compared to the bulkhead, maybe this is the "problem"?

Is your bulkhead 1" or 1.5"?

*Edit* lol, guess we were typing at the same time.

I would build and actual Durso, oversized.

[Quinster]

If you look at this pic

http://smg.photobucket.com/albums/v6...Anch=imgAnch11

mine is 1 1/4" that steps down to 1" at the bottom where it hooks to my bulkhead for my return...

[Murminator]

Originally Posted by Murminator

All plumbing is 1" except the drain which is 1.5" there is only 1 drain and 1 return. throttling back the pump doesn't make a difference

Sorry the "drain" shoulda been durso and it is 1.25 not 1.5

[KrazyKuch]

Have you tried drilling the holes in the pipe as it enters the sump like i posted at the top of the page???