Clack valves are manufactured from composite plastics and are designed to provide high flow rates over a wide range of applications, providing a great deal of flexibility in system design and greatly reduces inventory requirements.

● Solid state microprocessor with easy access front panel settings.

● Control valve design provides optimum service and backwash rates.

● Four methods to initiate regeneration; meter immediate, meter delayed, time clock delayed or pressure differential.

● Fully adjustable cycle times with 6-cycle control delivers controlled backwash, downflow brining/slow rinse, second backwash, fast rinse, refill and downflow service.

● Coin Cell Lithium battery back-up with an 8 hour carry over.

● One piece expanding seal spacer stack assembly.

● Download: WS1EI Datasheet / WS1EI Programming Manual