❸ Preparing The Pool; I Balance The Water - Zodiac eXPERT Manual De Instalación Y De Uso

❸ Preparing the pool
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3.1 I Balance the water
The water used must originate from a supply network compliant with Directive 98/83/EC on the quality of water
intended for human consumption. In order for the water to be treated optimally, carry out measurements and adjust
the values in accordance with the following recommendations:
Seasonal analyses in "preparation for re-use"
- Stabiliser (cyanuric acid) (<30 mg/L, ppm): the stabiliser protects chlorine from the destructive power of the
sun's U.V. rays. Excessive stabiliser can block the disinfecting power of chlorine and turn the water turbid.
- Metals (Cu, Fe, Mn) (
can cause permanent stains.
Monthly analyses
- TH (150 - 300 mg/L CaCO
value can vary significantly depending on the geographical region concerned.
- TA (80 -150 mg/L CaCO
stabilised. It is important that the TA is adjusted before the pH.
Weekly analyses
- pH (7.0 - 7.4): the pH measures the acidity or alkalinity of the water. A pH in the range 7.0 to 7.4 helps to
preserve the pool equipment and maintain effective disinfection. Taylor's balance method, as shown below, is
used to adjust the pH value:
TA
Taylor's balance
- Free chlorine (0.5 - 2 mg/L or ppm): this quantity of free chlorine makes the water both disinfected and
disinfecting.
Contact your retailer to determine the type of corrector product or automatic control appliance
to be used to adjust the values.
19
±
0 mg/L, ppm): metals damage the metallic parts of the pool (corrosion phenomenon) or
, ppm): the TH measures the water hardness (quantity of calcium carbonate), and this
3
, ppm): the TA measures the water alkalinity, and this value allows the pH to be
3
pH TH
: Mark the value of the TH after
adjustment.
: Mark the value of the TA after
adjustment.
: Draw a line between the TH value
and the TA value to determine the pH
value to be adjusted.