A bypass assembly engineered for use with GPM water driven proportional chemical dispensers is available from Dosatron International. The unit features an on/off lever that temporarily suspends the injection of chemical into the water stream. Dosatron says it's ideal for equipment maintenance, purging and cleaning lines or replenishing water lost to evaporation.

Dosatron International, Inc.
800-523-8499
www.dosatronusa.com