Gph

[andersoned14]

Is there anyway to guesstamate the gph of an overflow? I got mine from craiglist and am going to buy an new pump and would like to get one about the same gph. The pump is a mag drive but it doesn't have any markings on it to tell me size.

 

[bjohanson1234]

What size drain does it have?

I know that the size pipe will determine how much will drain, but I am not 100% on the amount.

Also, any pics of the pump? some one might be able to figure out what size it is by the picture.

 

[VAreef]

Pics would help. You can of course oversize the pump but use a valve in the pumps discharge to keep it within your overflows abilities as well.

 

[andersoned14]

ok will take some pics give me a min to upload

 

[andersoned14]

The pipe from overflow to sump is 1 pvc, so the gray flex tube maybe 1 1/4

 

[VAreef]

That is a small overflow but just off top of my head I would guess it could handle 600ish gph flow whcih isn't to bad. You would need roughly a 700gph pump for it. Thats just a guess now so don't hold me to it :)

 

[andersoned14]

do you know what kind and size pump that is--I got it with overflow, so I don't have any info. I was going to use my uv as the return line is this a bad idea. It is a 25w Lifegard Aquatics AquaStep Pro Ultraviolet Sterilizer which is rated for a750 max gph