 Alkalinity
The “Total Alkalinity” of water is
a measure of the amount of carbonates, hydroxides
and bicarbonates present.
This has an essential role in the control of
pH in your pool. The higher the alkalinity, the
more resistant the water is to changes in pH:
the alkalinity “buffers” the water
Common problems are limescale and cloudy water.
When the total alkalinity drops too low, rapid
changes in the pH can occur which could cause
corrosion and harmful or disagreeable swimming
conditions.
You can monitor the total alkalinity with a test
kit. The alkalinity should be maintained within
a range of 80 to 120 ppm.
If alkalinity is too low, add some sodium bicarbonate
(H2ofun T.A. PLUS). This increases the alkalinity
without affecting the pH value. If the alkalinity
is too high, add sodium bisulphate (H2o PH Minus).
Full instructions are on the labels of these products
to help you.
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