I am planning to use water storage tanks for rainwater collection and distribute the water from a nearby pressure tank with a switch set at 55 psi to 75 psi to meet my needs. How many psi should the pump be rated for in order to fill the pressure tank?
For further clarification: The water storage tank(s) will hold about 3000 gallons of non-pressurized water. I am looking for a pump to take water from those tanks and put it into a pressure tank. The water will be distributed from the pressure tank to various usage points. I want the pressure tank's pressure switch to be set to turn the pump on at 55 psi and to turn it off at 75 psi. Many of the residential shallow well pumps are only rated to deliver up to about 60 psi, but I have found a few that deliver 80-87 psi max. I was wondering how much psi you would recommend for whatever pump I choose to fill my pressure tank? Are there other options?