Pump plumbing question

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gorsuchmill

Member
Hearth Supporter
Mar 14, 2008
105
Central MD
I’m working on my install (1.25" pipe) and have 90s planned for within six inches of both sides of my supply side pump. Will this be a problem or do I need to have a longer run before the pump inlet?

Thanks.
 
I realize certain components ideally need a length of pipe run a number of pipe diameters to keep turbulence down. I will go out on a limb and say it probably will depend on the flow rate your trying to push through the pipe. If your on the high side for 1.25" pipe it could be a problem. On the low side of flow rate your probably OK.

Mike
 
Thanks Steam Man. With that said, would you take the time now to unsweat a couple of fittings and add some length to the run? In order to have enough space for all of the fittings, valves, pump, etc. prior to my primary connection I had to form a U towards the end of the run. My pump (Grundfos variable) is located on the vertical right leg of the U, such that I have ample room to simply extend the legs of the U a foot or so to gain some additional distance.
 
Without seeing your layout I would say if you can meet the specs for the pipe as required by the pump I would say try and do it. I do have a Grundfos pump in a straight run that is pretty tight with fittings and don't seem to have a problem.

Mike
 
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