Clack WS1 Twin

• Service flow 28 gpm, backwash flow 15 gpm with meter and bypass installed
• Solid state microprocessor with easy access front panel settings
• Front panel display for time of day, days until next regeneration, volume remaining,
current flow rate and total volume used (Totalizer), and Tank in Service Indication
• Four methods to initiate regeneration; meter immediate, meter delayed, time clock
delayed or pressure differential
• Optional double backwash feature offers optimum regeneration, cleaning ability
and efficiency
• 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 a 8 hour carry over
• Backwash and brining ability to 21” diameter tanks
• Downflow regeneration
• 12-volt output AC Adapter provides safe and easy installation
• Treated/Soft water post fill and regeneration cycles
• Patented one piece expanding seal spacer stack assembly U.S. Patent 6,402,944
• Patented linearly reciprocating piston operation U.S. Patent 6,444,127
• Patented quiet drain line flow control assembly U.S. Patent 6,776,901
• Reliable and proven DC drives

Water Specialist 1” EE Twin Alternating Specifications

Options: Backwash Filter, Bypass, Weather Cover
Compatible with the following typical concentration of regenerants or chemicals: Sodium chloride, potassium
chloride, potassium permanganate, sodium bisulfite, chlorine and chloramines

1. Noryl is a trademark of Sabic Innovative Plastics IP B.V. Company
2. Filter tank size calculated @ 10 gpm of backwash per square foot of bed area