WTC 600 LP / MP

MAINTENANCE

4.4.6Flushing the pre-filter

The WTC 600 LP/MP pre-filter must be flushed if the differential pressure of the pre-filter immediately after back-washing is more than 0.5 bar.

CAUTION

CAUTION

Before flushing the filter, check the manometer for correct display values and exchange if necessary!

Pre-filter blockages are caused above all by changed water constituents.

A renewed water analysis must be carried out in order to remove the cause of blockages. Notify sales department! Additional treatment stages possibly required!

- Composition of the pre-filter flushing service kit Auxiliaries:

-Flushing tank

-Four connection hoses

-Conductivity measuring device for comparative measurement after flushing

-(Goggles, gloves, apron)

-Flushing pump

Initial situation:

- RO system set to switched off operating mode and with master switch switched on.

Work steps:

1.Add 30 litres drinking water to the flushing tank and add 2.2 litres RM Kleen MCT 103

2.Dismantle the back-washing hoses at the pre-filters, connect the service kit hoses and feed to the flushing tank

3.Connect the flushing pump to the pre-filter untreated water inlet

4.Start back-washing

5.Switch on flushing pump

6.Leave the flushing solution to circulate until the back-washing is finished (approx. 10 min)

7.Leave the flushing solution to stand for 30 minutes

8.Repeat the procedure from item 4 once again

9.Reinstate the original piping and carry out a complete backwash.

If this cleaning is unsuccessful, the media filter must be disinfected. The service kit contents and the flushing sequence is the same as for flushing the pre-filter, however the chemicals used are those given in table 26.

Service Handbook 08.2004

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Karcher 600 CD manual Flushing the pre-filter, Initial situation

600 CD specifications

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