If you have a older pump that is not one of our 150psi pumps you can simply add a small washer about the size of a dime and twice the thickness under the spring in the
pressure switch, It gives you about 25-30 psi more for about 5 cents.
This does not need to be done with the 150psi pumps because they have the larger spring which is really the only thing that makes these pumps the different pressures. There are still other modifications to our newer pumps. But this is something you can do.