Pool water balance

Water Chemistry and Water Balance

Protecting the swimmers, bathers, users, the equipment and the vessel is the main job of water balance.

Chemicals alone will not produce safe, clear and pleasing water. The water must be effectively filtered and circulated. If the pump is too small for the pool, if the pump is not run long enough each day, if the filter is too small, if the filter is old, broken or is not functioning correctly, then water quality will suffer.

Filtration physically removes insoluble or suspended matter and other debris from the water. Circulation helps brings water to the filter and it assures that the chemicals that have been added are being dispersed and moved throughout the entire pool. It doesn’t help much if the chlorine in the water is in the shallow end while the bacteria and algae that need to be killed are in the deep end.

The pool end its equipment are best protected by maintaining water balance. In addition, balancing the water makes the most efficient use of the sanitizers, disinfectants and oxidizers that have been added.

Water balance

There are 5 or may be 6 or 7  parameters or constituents involved in the water balance.

There are:

By “Water Balance” we mean keeping the water parameters within their proper ranges:

Parameter Minimum Ideal Maximum
PH 7.2 7.4-7.6 7.8
Total Alkalinity 60 ppm 80-120 ppm 140 ppm
Calcium Hardness 150 ppm 200-400 ppm 500-1000 ppm
TDS 250 ppm 300-2000 ppm 2500 ppm
Cyanuric Acid 10 ppm 30-50 ppm 100 ppm
Borates (if used) 20 ppm 25-50 ppm 60 ppm