Abstract: A water storage tank built for a reverse osmosis water purifying system deploys multi water flow passages of purified water and drainage water, allocated a soft bladder unit receiving purified water encompassed by the waste water in the tank. When the water tank unit is fully filled with water, the water pressure activates the auto-shut-off valve or solenoid valve to stop operation of the reverse osmosis water purifying system. When the dispensing faucet is turned on, the drainage water swells to squeeze the soft bladder unit to deliver the purified water out from the soft bladder unit to the dispensing faucet, and the drainage water flushes the reverse osmosis membrane as well. The technique enables the tank to take the least water pressure resistance to hold water and drain water which results in energy saving and water saving.

Abstract: A manifold bracket assembly has a bracket body and multiple filter heads. The filter heads are mounted on the bracket body, and each filter head has an outer casing, a filter connector, two keyed tabs and two tab fasteners. The filter connector and the keyed tabs are securely mounted in the outer casing by the tab fasteners. The filter connector has multiple hose connectors. The keyed tabs are mounted respectively in two tab holes in the filter connector, and each keyed tab has a key block formed on the inner surface of the keyed tab. Accordingly, the filter heads can be easily and conveniently connected with each other by hoses connected to the hose connectors.

Abstract: A device for controlling water outgoing of a container by pressure includes a motor, an outgoing pipe, a water outgoing unit, a first thin film, a thin film sensing device and a check valve unit. The motor pumps water to a container. The outgoing pipe is connected between the water outgoing unit and the motor. The outgoing pipe has the check valve unit connected thereto. The thin film sensing device is connected beside the outgoing pipe. When the oater outgoing unit is set to be OFF, the pressure in the thin film sensing device increases to let the first thin film protrude to touch the switch of the thin film sensing device to control the motor to pump or not to pump the water.