Patent Number: 6,254,772

Title: Backwashable filtration system

Abstract: A multimedia fluid treatment unit and rotatable valve are disclosed in which a plurality of discreet containers are removably stacked upon each other and contain various different and distinct water treating media. The rotatable valve is rotatable between either of three positions one of which is a service position for routing the water to be treated through the unit for treatment, a second of which is a rinse position for rinsing the media in the unit, and a third of which is a backwash position for backwashing and/or regenerating the media.

Inventors: Chau; Yiu Chau (Richmond Hill, Ontario, CA)


International Classification: B01D 24/00 (20060101); C02F 1/00 (20060101); C02F 1/42 (20060101); B01D 024/12 (); B01D 024/38 (); B01D 024/46 (); B01D 024/48 (); B01D 029/58 ()

Expiration Date: 07/03/2018