Well with submersible well head pump with a pressure gauge and switch 40/70 in line to a air pressure tank
Then to a booster pump (can't find the HP), through a vent to release sulfur gas, through a check valve and into a large storage tank, probably around 150 gallons. There is a gauge on the top of the storage tank with a plastic line leading to a pressure switch set at 55/75
From here to a softener system and then to the house.
Our first problem was loss of pressure and water prime. The property management company hired a well contractor to fix the system. First they changed out the pressure tank, no help. Then the pressure switch for the well head pump, no help. Finally, they changed out the check valve. I'm not a plumber or well driller, but even I would have changed the check valve first. Then the booster pump would not come on and we were working off the pressure from the well head pump. I changed the pressure switch for the booster pump and that is working again.
First question is - The switch instructions said to fill the pressure tank to 2 PSI below the start pressure of the switch. Having a switch on the well side of the pressure tank and a switch on the storage tank side of the pressure tank, which switch do I base my PSI for the pressure tank?
And is the system designed correctly? I researched and found that most systems have the storage tank and the pressure tank between the booster pump and the water softener.
Sorry about being long winded, but I am through relying on others to fix this. I have the ability, but need a boost in knowledge to do right.