An optional pump piston seal wash assembly is available. When this option is installed in the system, the peristaltic pump can be set up to continuously rinse the back of the piston seals to remove salt crystals and prolong the life of the seals. To use this feature, an external wash solution must be connected to the system. The wash solution is either ASTM filtered, Type I (18.2 megohm-cm) deionized water or a combination of deionized water and 10% or 20% isopropyl alcohol. For maintenance and replacement instructions, see User maintenance.
For continued protection of the pump, replace the piston rinse seals and O-rings in the pump housing every 6 months, or whenever you replace the main piston seals for the pump. For details, see User maintenance.