Patent ID: 9181115
Filing Date: 2015-11-10
Classification: C02F,Y10T

Abstract:
1. A method of providing a regeneration stage in a water treatment system, the method comprising: providing a powerhead and a valve assembly, the valve assembly including a piston assembly; pressurizing a tank by the addition of water; operating the piston assembly in the valve assembly to enable the water treatment system to enter a first air bleed state for a first time period to allow pressurized, deoxygenated air to exit the water treatment system; operating the piston assembly in the valve assembly to enable the water treatment system to enter a second air bleed state for a second time period to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second atmospheric air pressure outside the water treatment system; and operating the piston assembly in the valve assembly to enable the water treatment system to enter a backwash state for a third time period to expel the remaining deoxygenated air and particulates from inside the water treatment system.