bulkheads

[laura65536]

I have a question, I am making 1" bulkheads for my plywood tank, as per the directions here:
http://www.cichlid-forum.com/articles/diy_bulkheads.php
I had heard that most bulkheads are rated at 600gph, do you think this holds true for these as well, or how many gph would you feel safe pushing through those?

 

[Wolf3101]

It's more a question of what's psycially possible... water flows through the bulkhead by gravity so it has a limit based on the diameter of the pipe.

 

[laura65536]

okay, so what would that limit be? maybe this would help, I have 2 pumps each does 2200gph, how many bulkheads do I need to get that done?
or can I just make them bigger and still only have 2, and if I did, how big do they need to be?

 

[Wolf3101]

Who we need for this is rally because any answer I give would be a guess at this point But I do know that most of the overflows I've seen listed for 900gph and up ...start at 2"....

 

[Merbeast]

Well, the higher the water gets over the overflow, the more pressure, and therefor more flow. I do know that I had to trottle back my something-or-the-other 3600 with a ball check valve at 5' head height and a 1.5" overflow. Maybe 2 2"ers will handle 2 2200 pumps.