An integrated water
system includes a central water purifier, a central water softener, a
reverse osmosis system,
ion sensors, a
solenoid valve, a
check valve, and a
reversing valve. The central water purifier is directly connected to the municipal
water supply. The central water softener connects to the central water purifier via a control valve. The
reverse osmosis system includes a
booster pump, a
reverse osmosis filter element, and a post-
filter element. Water from the central water softener passes through a second
solenoid valve and then the
booster pump connects to the reverse
osmosis filter element and the post-filter element. A pure
water supply faucet connects directly to the pure
water supply outlet of the reverse
osmosis system, and a high-
pressure switch is installed at the faucet. A
wastewater return path is provided at the
wastewater outlet of the reverse
osmosis filter element, along with four
ion sensors.