Valveman
Platinum Member
Even without the ball valve to the pressure switch the nipple itself could clog. This happens all the time. You need a 75 PSI relief valve in place of boiler drain or on a 3/4 tee with the boiler drain. The relief should have been popping off long before your tank pressured up to really high pressure. I have seen the bottom blow off tanks like that, making it a rocket and going through the roof, taking some of the plumbing with it. Pressure relief valves are important.Mystery SOLVED !!! .....although you can't see it in my first picture yesterday ( hidden under old pressure switch) there was a small ball valve that the original house owner put in so he could easily isolate the pressure switch and the tee ed off gauge. That ball valve was severely constricted. So as can be seen by the pic attached , My plumber removed that little ball valve, and replaced with straight nipple to new pressure switch and repositioned new gauge over to the 1 in feed tee. . So now I have a new 30/ 50 psi switch, a new gauge and no feedback pressure. Well turns on at 30 psi and off at 50 psi and does not gradually increase further anymore. He did test the switch with amp meter and also emptied pressure tank and tested its psi at its shraeder valve ( no water pissed out at shraeder) It is 10 psi low so when I get chance I will get compressor and get it up to 28 psi like plumber suggested. Thanks everyone ! I think my urging my plumber about suggestions I got here helped us keep bill at only $600. And now I can do it on my own if ever again. View attachment 749299