Salt Water Pool Chemical Requirements

The pH and chlorine levels in a swimming pool that uses a salt/chlorine generator for sanitizing must be carefully monitored and maintained, just as they must be in pools using liquid chlorine bleach or chlorine tablets.

As chlorine is produced by the salt/chlorine generator the pH will rise.  The effectiveness of the chlorine generated is dependent upon maintaining a correct pH level.  The manual addition of acid will be required periodically to control the pH, just as with pools that are sanitized with liquid chlorine bleach or chlorine tablets.

Cyanuric acid is sometimes used in swimming pools to prevent sunlight from reducing the effectiveness of the chlorine produced by a salt/chlorine generator. 

If the swimming pool pH becomes low, a base chemical such as alkalinity increaser must be used to raise the pH to a proper level.

If the chlorine demand exceeds the salt/chlorine generator’s ability to meet the chlorine demand, algae may begin to grow in the pool water.  This will require “shocking” the pool with liquid chlorine bleach, which is the most effective means of eliminating algae.  (16)

In general, the use of salt/chlorine generators for swimming pool sanitizing requires the use of chemicals for proper operation – acid and alkalinity increaser for pH control, occasional “shocking” with liquid chlorine bleach to eliminate algae and acid washing of the salt generator components or cells. 

Salt/Chlorine Generators:  Special Construction Requirements    Maintenance Requirements   Long Term Cost

 
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