I have a problem with my pressure switch not making good contact . Is there any adjustment for that or do i just go get a new one . Its like the switch will not keep contact with the the power side to keep the pump running when it has low pressure . i can take a screwdriver and push it over to get it to build up the pressure and then it kicks off and may be fine for a few days and then i have to do it all over . I have good pressure when it is working . Any help would be greatly helpful ...... Thanks Paul