Descale Part A

PVC rubber gloves and wrap around safety glasses essential.

Remove drain bung to drain wash tank.

Turn detergent pump off (if pump is fitted and cannot easily be temporarily disconnected or turned off, then detergent must be temporarily replaced with water solution and run for 5 cycles to ensure detergent is not injected into machine during procedure). Alternatively a Washtech Serviceman could remove front machine cover and temporarily remove feed wire or squeeze tube from the dispenser.

Approximately 1/2 fill main wash tank add Descale A to wash tank at a ratio of 1LTR to every 5LTRS of wash water. (i.e. if wash tank is 10LTRS then add 2LTRS of Descale A when tank is 70% full and check that chemical is not going down the overflow drain).

Allow tank to completely fill as Rinse Water fills tank.

Cycle Machine for 10-15 X 1 minute cycles, checking the softness of the scale as you go. Scale should gradually soften.

Agitate with a stiff brush to assist break up scale, as required through wash cycles.

Remove drain bung and empty wash tank solution.

Refill wash tank with fresh water, and circulate for 3 X 1 minute cycles.

Remove drain bung and empty wash tank solution.

Never mix with Descale Part B.