Watermaid ecoblend Owner's Handbook Manual - Manual Cell Cleaning
Copyright © 2017Watermaid Pty Ltd
Version 20170223
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necessary to add fresh water until the salt level returns to the required level or turn down the output to less
than 100%. The unit may automatically shut down if the salt level is too high to prevent component damage,
and will only restart once rectified.
Table: Salt Level Required
WM44 Cell Model
Salt Level Required
RP-7
3,000 – 4,000 ppm
RP- 9
3,000 – 4,000 ppm
RP-11
3,000 – 4,000 ppm
RP-13
(Low Salt)
1,000 – 2,000 ppm
10
Manual Cell Cleaning
The WATERMAID® WM44 uses the most up-to-date self-cleaning technology, known as "reverse polarity". In
simple terms, the polarity to the cell changes continuously at factory pre-set intervals from negative to
positive, and sheds the built-up calcium deposits from the electrodes.
If calcium level is maintained below the maximum recommended level of 250 PPM, then manual cell cleaning
may not be required. For further information, refer to section 13.5.
If manual cleaning is required:
1.
Turn off all equipment at the power outlet and close any applicable valves
2.
Use the union removal tool to remove the cell, complete with its housing (clear casing)
3.
Support the cell upside down and ensure it is away from people and animals
4.
Using gloves and face protection, add: 10 parts water to a bucket
5.
Using gloves and face protection, add: 1 part hydrochloric acid to the water
N.B. Always add the acid to the water
6.
Stir the solution with a wooden spoon or similar.
7.
Safely pour the solution into the cell and allow it to stand until the electrodes are clean
8.
Safely dispose of solution and rinse the cell with fresh water
9.
Return the cell to the pipe work and open any applicable valves
10.
Turn on all equipment
Please note: White vinegar can be used as an alternative to hydrochloric acid. Two (2) litres of white vinegar
equates to about 300mL of hydrochloric acid.