Looking for some advice--I have an old galvanized water tank--not the bladder tank but the type you force air into. It has a pumptrol pressure switch that cuts off at 50 psi. I want to bumb that up to 60 psi. When I took off the cover there were two springs. One larger one in the middle and a smaller one to the side. Both have nuts to increase or decrease the tension in the springs. Does anyone know how to adjust this properly. thanks Jeff
