Auto Water change

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Mag Drive 9.5 rated to perform:
GPH at 0': 975 GPH at 1': 780
GPH at 3': 740 GPH at 5': 685
GPH at 7': 610 GPH at 10': 450

I am pumping vertically just under 6ft and then horizontally 5ft. Between 8 29g aquariums this head pressure would turn over 3x/hr. I am using 3/4in drains for each tank. The top rack will drain directly into the lower rack tanks which will then drain into the 32g black tote sump. I will continue to run air stones or sponge filters in some of the tanks. I am considering just running the water change continuously on the rack.
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You know you have gph in the gpm box. 647 gpm is over 38000gph your head was 10000ft dam
 
Mag Drive 9.5 rated to perform:
GPH at 0': 975 GPH at 1': 780
GPH at 3': 740 GPH at 5': 685
GPH at 7': 610 GPH at 10': 450

I am pumping vertically just under 6ft and then horizontally 5ft. Between 8 29g aquariums this head pressure would turn over 3x/hr. I am using 3/4in drains for each tank. The top rack will drain directly into the lower rack tanks which will then drain into the 32g black tote sump. I will continue to run air stones or sponge filters in some of the tanks. I am considering just running the water change continuously on the rack.
View attachment 1461591
Just did the calculations you are at 14 ft of head with that setup that pump can't do that at 647gph

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lots of good info here -

in the winter i minimally heat my drip or i have lots of condensation dripping places i don’t want water -

use two separate water heater / on demand units from amazon (110v) cheap units

i use the 1/4 on big tank running .16-.25 gpm and 3/8” on smaller tanks - still sorting the rate

not sure what your drain / set up looks like - if needed

autotopoff.com has electric valves to turn water on or off -
 
Would a sump pump work?
 
If you can hook it up and it has the flow you need yes. I just bought a pump for Industrial irrigation. The name doesn't really matter
I don't understand why you want to do a water change so quick though slower the better Is dual water change over the whole day And this way you don't have to worry about the pump
 
I don't understand why you want to do a water change so quick though slower the better Is dual water change over the whole day And this way you don't have to worry about the pump
This is what comes from me hijacking my own thread. I need a return pump for my 29g rack. I'm working towards making it a combined system.
 
I don't understand why you want to do a water change so quick though slower the better Is dual water change over the whole day And this way you don't have to worry about the pump

I have my 180g tank setup to pump about 40g of water out of the sump in about 5 minutes every morning before the lights come on then a float valve opens up and refills the sump with well water run through a temperature balanced valve. By doing a large volume all at once I am pumping out 100% dirty water instead of dirty water that is constantly being diluted with clean water through a drip system. A large water change in the morning is more fresh water efficient than a continuous throughout the day drip water change system.

I am not knocking a continuous water change system, my initial plan was to implement one in my 180g tank! I am just explaining the advantage of a batch water change system as far as water usage efficiency.
 
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I have my 180g tank setup to pump about 40g of water out of the sump in about 5 minutes every morning before the lights come on then a float valve opens up and refills the sump with well water run through a temperature balanced valve. By doing a large volume all at once I am pumping out 100% dirty water instead of dirty water that is constantly being diluted with clean water through a drip system. A large water change in the morning is more fresh water efficient than a continuous throughout the day drip water change system.

I am not knocking a continuous water change system, my initial plan was to implement one in my 180g tank! I am just explaining the advantage of a batch water change system as far as water usage efficiency.

P.S. My well water costs practically nothing compared to utility water and the dirty water is watering the dry patch in my lawn. BUT the water change in my tank occurs before the CO2 injector for my plants turns on in the morning so I am saving a fair amount of CO2.
 
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