Inhoudsopgave
Advertenties
Beschikbare talen
Beschikbare talen
SI = PH + CHF+ AF + TF+ TDSF.
3- Water environment maintenance
Weekly test
A. Free residual chlorine level. Use reliable instrument and methods to check the level of
free residual chlorine in the pool. Normal range is 1-3ppm. Chlorine concentration can
be increasedor decreased by adjusting the chlorine output via salt chlorine generator.
Attention: chloride ion sample collecting shall be 2 at least, positioning:
o near water surface of pool inlet as collecting point 1.
o away from water surface of pool inlet as collecting point 2.
Comparing two samples of free residual chlorine, the higher value should be the sample
near the inlets, which is produced by salt chlorine generator.
B. PH value. Normal PH value is 7.2-7.8. If the value is too high, add acid to adjust.
Add
alkali to adjust if it is too low.
Monthly maintenance
A. Total basicity. Normal value ranges from 75 to 250ppm. If the value is too high, add
acid to decrease the basicity, if the value is too low add baking soda.
B. Salt content. The normal value is from 2700 to 4500ppm, add salt according to need to
reach the optimal salt concentration.
Seasonal maintenance
A. Stabilizer. the normal value is from 60 to 80ppm, could add pyrolythic acid to increase
the concentration of the stabilizer.
B. Calcium hardness. The normal value is from 75 to 500ppm, when the value is too low,
calcium can be added to increase its value; when the value is too high, pool water can be
released, and fresh water added to the pool will decrease the value.
15
Advertenties
Hoofdstukken
Inhoudsopgave
