If i have 2 2"drains on a tanks how many GHP will that deliver if its just gravity fed. I have a 600 gallon tanks and it has 2 2" drains going into the overflow and i have 2 external pumps that pump oout about 5000 gallons per hour. I am not sure if the drains will keep up with the pumps. Any advice?
Flow rate for tank
- Thread starter steve1815
- Start date
2.0 = 40.0 = 2400gph
so your running 4800GPH with those two drain holes. Depending on your head loss of the pumps one of them might work. If its still to powerfull you can either make the hose longer or use a ball valve to slow the flow to match the overflows.
so your running 4800GPH with those two drain holes. Depending on your head loss of the pumps one of them might work. If its still to powerfull you can either make the hose longer or use a ball valve to slow the flow to match the overflows.
ok but i just read that a 1" drain will handle a max of 1000gph so it would make scence that 2 2" drains would hold 4000 gph? so one of my pumps would be fine.
size _GPM __GPH
1/2 = 2.50 = 150
3/4 = 5.63 = 337.5
1.0 = 10.0 = 600
1.25=15.6 = 937.5
1.5 = 22.5 = 1350
2.0 = 40.0 = 2400
well this is for pvc, if you plan on using the same thing.... No a 5000gph pump would be to much for your drains either way. Your overflows need to be pushing more water than the pump.
for instance my overflow does 2400GPH. Its a 2inch drain... my pump does 3400gph but after head loss and a ball valve i have it to 2320GPH and my overflow just keeps up with it enough. I am fully utilizing all of my flow.
1/2 = 2.50 = 150
3/4 = 5.63 = 337.5
1.0 = 10.0 = 600
1.25=15.6 = 937.5
1.5 = 22.5 = 1350
2.0 = 40.0 = 2400
well this is for pvc, if you plan on using the same thing.... No a 5000gph pump would be to much for your drains either way. Your overflows need to be pushing more water than the pump.
for instance my overflow does 2400GPH. Its a 2inch drain... my pump does 3400gph but after head loss and a ball valve i have it to 2320GPH and my overflow just keeps up with it enough. I am fully utilizing all of my flow.
ok i just looked up on dolphins website and the pump runs about 4000 gph at 6 feet so i think my 2 2" drains will be fine for the pump if i use your 40 gpm mer drain and i have 2 drains that are each 2" that would be a total of 4800 gph right
yea so i would run the pump at 5ft of hose if you can and that way you get the most flow. Your pump should be just under your overflow rate. Sounds like it should work out fine.
i have 2-2" drains on my pond and my 4200 gph Dolphin pump keeps up with them but i dont have alot of drop to the sump so my flow would'nt be the same as someone who could go straight down which would be creating more suction