Abstract: A point-of-use water filtration system having an idle mode and a filtration mode, the water filtration system including a feed water inlet, a pump in fluid communication with the feed water inlet via a feed water line, and a semi-permeable membrane having an upstream side and a downstream side. A first portion of the upstream side is in fluid communication with a membrane inlet and a second portion of the upstream side is in fluid communication with the concentrate outlet, and the downstream side is in fluid communication with a permeate outlet.

Abstract: The present invention discloses a water purifier and a water production method thereof, relating to the technical field of water processing, the water purifier comprising: a reverse osmosis membrane device comprising a raw water port, a purified water port and a waste water port; a water storage device which is provided therein with a first chamber of which a volume can be adjusted, the first chamber being communicated with the raw water port and the purified water port, respectively; in the cleaning mode, the first chamber is disconnected from the purified water port, the first chamber is communicated with the raw water port, and the purified water flows into the first chamber from the raw water port of the reverse osmosis membrane device and is discharged from the waste water port of the reverse osmosis membrane device; in the water production mode, and the first chamber is communicated with the purified water port, the first chamber is disconnected from the raw water port.

Abstract: The present invention discloses a water purifier and a water production method thereof, relating to the technical field of water processing, the water purifier comprising: a reverse osmosis membrane device comprising a raw water port, a purified water port and a waste water port; a water storage device which is provided therein with a first chamber of which a volume can be adjusted, the first chamber being communicated with the raw water port and the purified water port, respectively; in the cleaning mode, the first chamber is disconnected from the purified water port, the first chamber is communicated with the raw water port, and the purified water flows into the first chamber from the raw water port of the reverse osmosis membrane device and is discharged from the waste water port of the reverse osmosis membrane device; in the water production mode, and the first chamber is communicated with the purified water port, the first chamber is disconnected from the raw water port.

Abstract: A point-of-use water filtration system having an idle mode and a filtration mode, the water filtration system including a feed water inlet, a pump in fluid communication with the feed water inlet via a feed water line, and a semi-permeable membrane having an upstream side and a downstream side. A first portion of the upstream side is in fluid communication with a membrane inlet and a second portion of the upstream side is in fluid communication with the concentrate outlet, and the downstream side is in fluid communication with a permeate outlet.