Patent ID: 9707499
Date: 2017-07-18
CPC Classifications: B01D,E04H,Y10T

Claim:
1. A backwash valve for reversing fluid flow comprising, a body comprising, a sliding gate including a stem connected to a gate body, the gate body comprising a first chamber and a second chamber, the second chamber separated from the first chamber by an internal wall; the sliding gate linearly reciprocable between a filter position wherein fluid communication is provided among the first filter port, the first chamber, and the first pool port and at least one of said first and second filter ports is a fluid exit from said backwash valve, and a backwash position wherein fluid communication is provided among the first filter port, the second fluid chamber, and the second pool port, and between the second filter port and the waste port, and said at least one of said first and second filter ports is a fluid return to said backwash valve.