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pH TEST EQUIPMENT
When descaling it is important to monitor the pH value of the descaling solution.
The pH is a measure of strength and is a good indication of progress when descaling.
The pH scale commences at 0 and progresses through to 14, where:
0
=
7
=
14
=
After adding the descaling chemical to the water a typical reading may be around 1 - 2, i.e. acidic.
As the descaling progresses the chemical will be exhausted and the reading will begin to rise towards 7.
The lower the reading the stronger the solution and its ability to descale.
Monitor progress taking regular readings, which will indicate if the process is complete or if additional chemicals are
required. This is explained further within 'Use of the Descaling Equipment ' section.
Any water left in the system after the descaling process should be left neutral i.e. the same as the mains water supply
with a pH of 7.
If a reading is below 7, either continue dumping the contaminated water, or add and circulate neutralising crystals to
obtain a neutral level.
If the reading is above 7, continue dumping the water until a neutral level is obtained.
pH can be tested either with test paper or an electronic meter.
pH TEST PAPER
The roll contains a 5mt strip of test paper. Tear off a small section, and dip it into the water to be tested.
The moistened paper will change colour according to the pH of the solution.
Match the colour with the colour wheel on the roll.
Red
=
Yellow
=
Blue
=
______________________________________________________________________________
April 2022 edition
Kamco Descaling Pump Manual
C20 | C40 | C90 | C210
strong acid i.e. strong descaling chemical.
neutral i.e. mains water supply.
strong alkali i.e. caustic soda.
1
i.e. strong acidic solution.
7
i.e. neutral.
14
i.e. strong alkaline solution.
Kamco Descaling Pump Manual
17 |
P a g e
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