Well Pump into low flow RO unit

[Rbrockman]

I have a pump in a well which is providing the water source for a 3000 gpd reverse osmosis unit. The RO uses 2-3 gpm. Currently I have a pressure regulator inline between the well pump and RO input to keep the input pressure in check at around 40-50 psi.

It occurs to me that perhaps this isn't best for the well pump to be only pumping 2-3 gpm for long periods.

Would it be better for the longevity of the well pump to use a pressure tank / switch setup to manage the pressure and on-time for the well pump? Is it a problem to only be pumping 2-3 gpm?

Thanks for any input.

 

[Bannerman]

Would it be better for the longevity of the well pump to use a pressure tank / switch setup to manage the pressure

There is usually no issue running the pump at low flow for a long duration as long as there is more than 1gpm flow to provide cooling for the submersible pump.

From your description, it seems there is no pressure switch to control the well pump operation. How is the pump shut down when additional well water is no longer needed such as when the RO storage tank becomes full and the RO unit stops producing additional RO water?

 

[Sponsor]

 

[Rbrockman]

Thanks for the feedback! This then allows me to keep things simple. Yes - the pump is controlled by a float valve in the RO storage tank.

 

[Valveman]

The pump even likes to run continuously. Cycling on and off with a pressure tank would be bad for it. As long as the RO uses at least 1 GPM it is better to keep it the way you have it.