Back pressures effect on pump life.


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Old 05-24-08, 01:25 AM
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Back pressures effect on pump life.

I have a pebble pond with a submersible pump.
I know this is a stupid question...but...
The pump that I purchased is a little too big (too much flow).
If I put a valve on the discharge end of the pump will the increase in back pressure place more strain on the pump and shorten the life of the pump?
Would it be better to put on a diverter and run the excess water back into the pond?
Thanks
 
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Old 05-24-08, 03:54 AM
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Originally Posted by struckj View Post
If I put a valve on the discharge end of the pump will the increase in back pressure place more strain on the pump and shorten the life of the pump?
No, not as long as there is still enough flow to keep the pump cool. I would guess you could restict the output up to 50% without causing any problem for the pump. And as difficult as this might be to believe, restricting the output will also slightly reduce the amount of power required to run the pump.

Originally Posted by struckj View Post
Would it be better to put on a diverter and run the excess water back into the pond?
Either way would be fine.
 
 

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