Anna W
New Member
For some reason the plumber who installed our 40 gallon pressure tank originally set the cut in/out pressures at 30/50 even though the switch is a 40/60. Our pressure has always been low, and after reading a million posts when we recently had a lightning strike, we asked the well guy who fixed the outside box to up our pressure tank to a 40/60 cut in/out. Since the air pressure was set for the 30/50 (27 or so PSI), we added air to the tank (air in tank now at 36.5 PSI) to 3 PSI below the higher cut in. The well guy was not very helpful beyond replacing the switch box, so I just wonder why the initial setting was low (30/50) when the switch was rated 40/60? Why do other posts say a 40/60 wears out a pump more than a 30/50 when the pressure differential for the pump going on and off is the same (ie, 20 PSI)? My hub was freaked out to add air to the tank (which we did) but I wonder why it matters if the air pressure is LOWER, if the pump is going to kick on at a higher cut in anyway (ie, if we had left the air pressure at the old 28 PSI) (this is just for my info/ general knowledge)? Our pressure is better now, but I don't want to cause our pump stress as we have a deep well, and seem to draw water issues to us like magnets. Thanks for your help/comments. aw