Asked in Home & GardenHome ImprovementPlumbing
How do you increase amount of water in a newly installed bladder pressure tank precharged to 38 psi 86 gal max drawdown 31 gal 30-50 psi on-off switch Tank seems to have no water in it after install?
January 08, 2015 12:35AM
The installer should have reduced the pressure in tank when fitting it. Tanks are commonly sent out with 38-45 PSI. It is up to the installer to adjust this. To increase the water capacity, reduce air from the top valve till it's about 28 psi with tank almost empty. Now adjust the pressure switch to turn ON at 30 PSI. The main screw on most pressure switches adjusts both low and high pressure points.