Today my neighbor and I installed an old, Sears, 1/2 hp, 20/40psi, shallow well pump outside to use for watering the lawns. The pump runs OK and has a constant psi of around 40.
Here is the problem:
Whenever any pressure builds up, over 50, by using a sprinkler, the power cuts out on the pump?
I understand this is to protect the pump but how can I remedy this.
It has 1/2" in and 1/2" out. I first thought, If I changed the outflow to 3/4" would this bring the pressure down but, I remembered that the flow is controlled by the smallest fitting and that would be the sprinkler.
Is there a pressure relief valve that should be installed?
How does this work in a house that runs the water at different pressures?
I know there has to be a way to make this operate the way I want it to and not harm the pump!
It came to me today that, in the towns I worked for, I have never had the need to inspect a well system!
I'm going to ask the Plumbing Inspector at work tomorrow and see if he knows.