Emergency Pump Help

I have 2 days before my Amazon prime trial ends and Need a return Pump arrival before Christmas.

I can't find a single pump with flow rate information on Amazon.

I have a 40 gal tank with a 10gal sump and am looking for 320gph at a 5ft head pressure. 4ft vertical lift and 1 90 degree pvc at the return.
Do you know of any return pumps that would work that have information in the description that will allow me to calculate what the gph would be at 5ft headpressure? I'm not finding any online that have the spec information on flow rate per ft of lift. I've clicked on the first 20 pumps that came up in each of the searches and none have the info needed in description... what the heck do I do? I will keep looking though.

Everything i'm finding searching 320 GPH submersible pump or 320gph sump pump only lists stuff like this in the description
=========================================
Max Flow: 320 GPH (1200L/H), H-Max: 6.2Ft

Maximum flow rate: 660GPH

• ENERGY EFFICIENCY and HIGH LIFT--8.2ft High Lift

==========================================

But doesn't say how much Gph will be at the max 6.2 ft you see? So i'm not sure how to measure the difference between 2ft or 4ft lift.

What are the specs i'm looking for in a pump or even buying two smaller pumps that will average 320GPH at a 4ft lift?

 

I believe your looking for a fountain pump.

 

indeed. I have search a ton of those aswell and they do not list the needed info on the product to calculate gph at 5ft head pressure. Is not this chart saying that the UL320 pushes 320 at 6ft lift or is it saying it has 320gph without ANY lift and any lift lowers Gph and basically at 6ft 1inch is virtually no gph?? But is 6ft rise the same as 6ftheadpressure? I really need help knowing how to find pumps with the information needed to calculate Gph after 5ft head pressure.

 

Six foot rise, lift, head whatever they want to call it its the same thing. According to the chart yes 320 gph up to 6 feet.

 

I have the 550 and I read somewhere it was 400gph at 4'. Some info is out there but hard to find, especially for these chinese pumps.

I know some guys use a ball valve to limit flow if that's an important spec for your use.

 

Six foot rise, lift, head whatever they want to call it its the same thing. According to the chart yes 320 gph up to 6 feet.

Well that was simple... Now I feel really smart rather than totally lost confused dumb dumb.... I totally thought that was what the chart meant aswell. Though I was told in another thread:
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The chart does not show you the gph at the max lift height. It shows you gph max at 0 lift height because that is how pump manufacturers provide tech parameters.
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So basically this product in the link I provided does not give the information needed for calculating flow at max 6 rise only that it can go 6 max.

 

No the chart says it will flow 320 gph at 0-6 feet.

 

No the chart says it will flow 320 gph at 0-6 feet.

You see....I totally want to end this madness because this is the same kind of chart I see on nearly 70 of the 100 of pumps I've found on Amazon. and NONE of the 100 have the "flow rate" described such as in the way the helpful hand that said it only has 320 at zero head.

See here is a part of a description from a separate pump he offered to show what I should be looking for in a pump description, although its liters and not gallons doesn't matter ofcourse:

Flow Rate of 300L Per Hour@ 0 cm; 190 LPH @ 30 cm; 95 LPH @ 60 cm; Max Lift: 60 cm, 3 watts, 220-230 V ac, Pump Dims: 48 x 46 x 34 mm.

Basically saying that my UL320 I was looking to buy does 320 with 0 cm but doesn't list what the gph is at 30cm,60cm ect. all the way to 5fthead

Which I totally get because Sellers love to sell to unsuspectinig people that think its so simple. Because indeed the UL320 is a 320gph clean cut. But without posting that lift information people might not know its actually only going to have say 20gph after lift. and nobody would buy 20gph if they are looking for 320gph...slight of hand but still honest....just hoping you fall for the totally legal trap of assumption.

 

No your right I'm used to the charts fir big pumps.

 

F
https://fountainsnslate.com/pump_s_flow_rate_chart
Any of these brands

 

F
Pump's Water Flow Rate | Pump's Rise | Pump's GPH | Pump Chart - Fountains n Slate, Low Voltage Pumps, LED Lights, Fountain Plugs
Any of these brands

That's pretty helpful.... Do you know where to find more graphs like these on other brands? I'm sure I could simply google it. In the case I could price shop for lower prices. Also I've easily clicked on 150+ pumps and none have flow charts or flow information.....so it just feels like I'm missing something...like I should have a formula on hand to figure out what that pumps flow rate is. Could they all be trying to scam? There must be a way to figure it out such as to say I doubt everyone buying a pump that will have to lift water simply don't buy on amazon because their products don't have flow rate info... again is there not a formula to calculate with the info present?

 

I got them from google s.

 

That's pretty helpful.... Do you know where to find more graphs like these on other brands? I'm sure I could simply google it. In the case I could price shop for lower prices. Also I've easily clicked on 150+ pumps and none have flow charts or flow information.....so it just feels like I'm missing something...like I should have a formula on hand to figure out what that pumps flow rate is. Could they all be trying to scam? There must be a way to figure it out such as to say I doubt everyone buying a pump that will have to lift water simply don't buy on amazon because their products don't have flow rate info... again is there not a formula to calculate with the info present?

I would guess 99.9% of pump buyers on Amazon don't really care about exact flow rates at a given height so they go with something that's close to the rates they want.

I think there's too many unknown variables to have a formula that would work.

What would happen if you used a pump that gave you 400gph instead of the 320gph you're looking for? What about 250gph?

 

Each fitting counts as half a foot of lift and I think there is a friction chart in the link if not its here.
Choosing the Perfect Pump - Nelson Water Gardens and Nursery
If your going to do something might as well do it right.

 

I would guess 99.9% of pump buyers on Amazon don't really care about exact flow rates at a given height so they go with something that's close to the rates they want.

I think there's too many unknown variables to have a formula that would work.

What would happen if you used a pump that gave you 400gph instead of the 320gph you're looking for? What about 250gph?

I understand GPH necessary for Xgallons is highly subjective and opinionated so I just went with the popular vote of filtering a tank 5 - 10 times an hour. So I went halfway at 320gph. There was literally no hardcore evidential reasoning or direct scientific calculation as for why exact numbers so 320gph it was.

 

Each fitting counts as half a foot of lift and I think there is a friction chart in the link if not its here.
Choosing the Perfect Pump - Nelson Water Gardens and Nursery
If your going to do something might as well do it right.

Yes that link is very informative. I understand the information on it I just wished the pumps on amazon had the numbers to apply to that info simply because not all pumps with 100Gph have the same Gph at 1 ft lift. So I need to know how that specific brand's gph at 1ft yknow? If i'm going to have to go off of charts ect I find googling that will severely limit my search thus limiting my ability to not overpay ect. Thanks for everything guys, This chat has indeed been informative. I guess I better get down to some hardcore searching....I see myself spending 5 hours searching brands because I can't use a "cheapest first" option only to find out 5 hours later I saved 5$. But did I save 5$ on something I overpaid 40$ on because I could only go by the brands that have flow rate charts? Who knows xD All I know is ebay, Amazon, and all the other top engines don't have flow rates anywhere in site.

 

And yea that comes down to pump efficiency.