My PB’s plumber relocated 3HP Pentair VS pump and I later noticed that he just cut old 2’ pipe to the edge and left that inside check valve and then spigot new 2.5” pipe in n the check valve. Pump has 3” suction line before this check valve. It looks like pipe size is going from 3” suction line to check valve 2” ID then 2-2.5” check valve then 2.5” pump inlet to 2.5” outlet. Do you think it will cause pump to run hard due to kind constricted check valve or he should have ideally put a new 2.5-3” check valve? Any suggestions and recommendations..
Check valve at pump suction
- Thread starter sansuncal
- Start date
- Jun 7, 2017
- 9,087
- Pool Size
- 29000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400
I would have replaced the valve but this should not affect anything accept you'll have reduced flow.
- Jul 21, 2013
- 52,681
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Do you have a spa?
What speeds will you be running the pump?
It will make no difference at the low RPMs a VS pump is typically run at.
If you have a spa and need to run the pump full speed for the spa jets it may make a small amount of difference and even then I doubt you will feel the difference at the spa jets.
What speeds will you be running the pump?
It will make no difference at the low RPMs a VS pump is typically run at.
If you have a spa and need to run the pump full speed for the spa jets it may make a small amount of difference and even then I doubt you will feel the difference at the spa jets.
- Jul 21, 2013
- 52,681
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Yes spa is on a separate shared 5 hp pump with pool so not a worry there. I am just angry at the plumber who didn’t care to ask me or PB who plumbed 3” suction line for this dedicated pump for rain curtain to maintain needed flow.
- Jul 21, 2013
- 52,681
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
OK, so pump is only used for rain curtain.
I would see how it works and if you see any difference with the way it is setup.
I would see how it works and if you see any difference with the way it is setup.
In that short distance there will likely be little to no impairment to the flow. Google "Bernoulli Principle."
Haha .. reminds me of physics lectures. May be it is not bad as it seems like. Thanks all!