return pump help please :(

[305phins]

Is a mag 5 good enough for a 40g breeder with 10g sump. plz help

 

[Henry Parsons]

should be ok, you could probably go a little bigger and still be ok assuming your overflow is big enough. There are some charts-probably just google search them- that will tell you how much a given size overflow can handle. A mag 5 is 500gallons per hour- thats brand new and without any head pressure. If you are pumping the water up a couple of feet this will be reduced. Someone else out there with more experience could probably help more.

 

[Henry Parsons]

just realized reef central has one of those calculators

http://reefcentral.com/calc/drain.php

I personally think that you may want more than 500gph for a 40 breeder but i don't know for sure. Anyway the calculator will tell you what size overflow you need for a given pump

 

[markandkristen]

alot has to do with your pumping heighth as well.
im of the opinion your skimmer can only skim so much so if you pumping 8000 gallons a hour and your skimmer only skims 300-400 gph then your just pumping dirty water back in
and its usually quieter with less through your overflow.

o run a eheim 1260 on my 150 with 6ft of height so i pump around 600 gph on a 150
my overflow can only handle i think 900 but im not putting it to the limits either.. i like a little room for error

 

[305phins]

My overflow is a pvc with a 2in drain head and a 3/4in pvc

 

[WSSJ25]

a slow pump means more skimmage patential.
a faster pump more current flow but less skimmage.
i just went with slow pump and just add powerheads since your gonna add them anyways.
thats just me.

 

[jasonrp104]

Agreed. My sump is only going to have about 300 gph turnover after headloss. I figure that will give it plenty of time to get skimmed or go through my reactor