diy overflow

[CHOMPERS]

Or if you are not into drinking fish water (and the pee that goes with it) you can always pour a little water in the vent to fill the outer loop and then suck the air out of the checkvalve. Using a short piece of air line makes it easy if you have a large tank.

 

[Euge]

i never get water in my mouth when i suck the vent. I do when i suck the check valve.

 

[DB junkie]

Has anyone pinpointed the exact GPH a 1.25 overflow will handle? I keep ending up with a dry sump. 782 GPH pump.

And is there any kind of special tricks involved in getting a 1.5 overflow to work? And what is max flow on the 1.5?

 

[Euge]

you could put a float switch in the sump.

 

[DB junkie]

you could put a float switch in the sump.

I just want to know if I am exceeding the amount of water a 1.25 overflow can handle or if there is issues with the one I built. If they should be able to handle this much flow then I need to work the bugs out of mine. If I built it correctly and it just won't flow that much then I can just get a smaller pump.

All I want to know is what the max flow of a 1.25 SHOULD be.

And IF I am exceeding the limitations of a 1.25 then will a 1.5 work?

 

[daninthesand]

cool. thanks for all the information.

 

[Euge]

I think a 1.25 is the maximum size for a pvc overflow. I think rallysman stated it somewhere earlier in the thread. Anything bigger is just a waste. Can somebody confirm this??

 

[CHOMPERS]

I...Can somebody confirm this??

Nope. Someone here made one out of 1.5" and it flowed like Niagra Falls.

 

[CHOMPERS]

Btw, I am going to make one for Richardhmc out of 1.5"; I'll run a test on it and post the results.

 

[timdolhelyg]

could you hook a power head with a venturi pipe to where the check valve is ??