Pool surfaces feel rough and scaly

The balance between pH, total alkalinity and calcium hardness is incorrect, and the water is technically ‘scale forming’.

  • Test for pH, total alkalinity and calcium hardness and bring them within recommended parameters. It is best to carry out a ‘Langelier’ water balance calculation (see water balance), or ask your pool professional to do this for you.

This is probably algae forming on the pool surface due to insufficient chlorination at some stage, or to a ‘dead spot’ in the water circulation.

  • Sweep the affected areas vigorously to remove as much algae as possible, then shock dose with an unstabilized chlorine (follow the procedure set out for killing algae). Prevent a recurrence by periodic use of an algaecide

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