Correct GPH

[dscl]

So in relation to my other recent topic 'Pump gave out - need recommendation on a new one' I have a general question about GPH ...

:goldfish: What do I need? :goldfish:

Pond Size: 2000-2500 gallons
Fish: 32 (I need to find someone to take some of them LOL)
Pumps: 1 (TBD)
Arreation: 1 waterfall

Currently I've been looking at the following options and really the decision comes down to how man GPH I need to push.

2000 GPH - SmartPond WPR2000
2150 GPH - Harbor Freight
3600 GPH - Smartpond WPR3600

Thanks!

 

[capewind]

Well, if they are all 2-3" fish, something 2000-2500 gph should be fine... Our smaller pond is supposed to be a bog, and full of nothing but water would be 2500 gallons... a bit of gravel in there, so guessing it to be 2000-2200 gallons and I think we have 9 fish (8 in the 6-9" range, and one 12") and a bunch of 1-2" babies and feel that with average filtration, we would be pushing it....

 

[dscl]

I have about 4 BIG Koi and then all the rest are littler guys ranging from 3-7"

 

[capewind]

WOW... that's a lot of load... I dont know what your water quality was testing out as, but you didnt say you were losing fish, so something has been working for you. What we your last test results? Did you figure out what the old pump was putting out?

 

[dscl]

I haven't been able to figure it out yet. I've called the manufacturer, but they can't help me; apparently the pump is missing a sticker that should have been on it.

Yeah I haven't lost any fish and from everything I have read I can't figure out how I haven't. I'm going to do a water test tonight, but last time I did it the numbers were way far off from ideal.

I think I'm going to end up going for the 3600 GPH pump rather than the smaller one. I figure you can under pump, but propbably harder to over pump.

 

[FountainMan]

My pond is only 641 gallons. I use a 3600gph and does fine. It is said to use a larger pump then required and using valves to control the flow. For your pond the 3600 should do just fine.

 

[capewind]

more to filtration than just a pump, but if you know your values have been wayy off from where they should be, I would get the biggest pump you can afford. Without knowing all the variables, I would be thinking 4000-5000 gph, but 3600 gph has got to be more than what that pictured pump could be putting out... In either regard, find homes for the extras you dont want. You will improve the water quality, and they will cost less to feed LOL.

 

[sissy]

I think you are in need of a bigger pond and second filter .