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Old 01-11-2005, 12:45 AM   #1
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Sump/pump question

I am thinking about moving my sump to another room just on the other side of my basement wall. I will have 12' of 3/4"PVC pipe running from the sump back to my tank. The pipe will have to go up 5'. I am using a Mag 7 and wanted to know if it could handle the head pressure. Is head pressure only the verticle travel, or do you have to consider horizontal distance too?
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Old 01-11-2005, 12:59 AM   #2
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It will barely have any flow by the time it gets back to the tank. I would go with a mag 18 or 24 if you want decent flow put of the pump.
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Old 01-11-2005, 09:33 AM   #3
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There is some head pressure on horizonal runs. The exact formula is beyond me to calculate what X feet of horizonal run at 3/4" diamater = what amount of head but you can factor it all up to friction.
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Old 01-11-2005, 10:42 AM   #4
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I have 12' of 1" ID tubing that I run about 5' up and through a loop de loop as well. My mag18 handles it like a champ. I have a long return so that I can take the pump out and place in the new water for changes. Spits the water right back into the tank. I agree that if pony up on a new pump you might have an easier go at it.
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Old 01-12-2005, 03:58 PM   #5
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Bigger tube ID=less friction losses
Bigger Flow = more friction

So you might want to upsize your piping and upgrade your pump.
Send me a PM if you want the formula to calculate the friction losses in the pipe.
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