I have a private water supply which is 150 ft from the house and 45 ft below.I have a pump. a pressure switch and an aquabox The pressure switch is set to start pumping at 22 psi and stop at 30 psi The aquabox is pumped up to a pressure of 19psi ( 3psi less than the starting pressure) I want to understand how the system works i.e.; with the bladder in the aquabox filled and at 30psi I can see that opening a tap in the system will reduce the pressure and allow the water to flow but what drives it? The 19psi in the aquabox.? I am still confused what the 19psi actually does. Can someone explain in clear terms please. The main reason I ask is I require to check and correct the pressure in the Aquabox which must be done with no pressure in the water system and instead of purging the whole line to reduce pressure I wondered if having switched off the pump I could simply open a tap in the system and thus empty the bladder and thus reduce the pressure. Hope I have made sense Blair
- posted
15 years ago