Are rotors ok at 30 psi?

[Wet_Boots]

Originally Posted by soafone

Short of replacing the pump, I think I have come up with a solution! Can I not just change out the pressure switch? When I did a gpm test, the pressure was at 30 psi, which leads me to believe the pressure switch is 30/50. I could swap it out with one that is 40/60 or even a higher one line 50/70 if available. Does this make sense? Would I still have 12 gpm's of flow, of would that decrease if the pressure is increased by the new pressure switch?

Uhhh, that is more a confession of incompetence. You don't evaluate a pump while it is cycling on and off.

Besides, you adjust a pressure switch, rather than swap it out.

[AI Inc]

Originally Posted by soafone

I still would like to know if anyone can answer the million dollar question. "Do rotors work well enough at 30 psi?" My distributor tells me they do, but I am reluctant to believe him. I suppose I could ask the home owner to change the pump in the well, but I am sure he won't be anxious to do it, since he just took possession of the brand new home. So, I have three options...

1) run the rotors at 30 psi less the friction loss (end up with approx 25 psi at the rotors)
2) use a booster pump to add psi, yet the flow will remain at 12 gpm
3) ask the home owner to replace the pump.

I think option three is the clear winner. Fortunately for me, my estimate read that it was based on the home owner providing a 1" water supply capable of 12 gpm's @ min 50 psi.

why dont you just turn up the pressure? Remember to increase the air pressure in the tank too.

[muddywater]

And use a cycle stop valve. And isually you can adjust pressure switch.

I try to get a well company to evaluate the well. You will prob be the only contractor that will suggest it. And you are covering the homeowners butt as well as yours.

Last job i got the well company to do that, i was the only contractor that suggested it and they wouldnt even look at other bids. 12k job that was very profitable. And Mike i used stainless i20s and sch 40! Mike oleary special!

You HAVE to know the recharge rate! At least call the well co, the installer may already have records on file.
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[grassman177]

i have never done any work with a pressure switch, or a lake/pond or well. however, i think i would be able to figure it all out just fine. there is simply not any of those used around here, except one job i know of, and i dont have them as a customer