Problems and Solutions to pH Control

February 27, 2020

Fibre Tech pH Control

pH, the measure of acidity or alkalinity of the water, is determined by your test kit. A proper pH reading is 7.2-7.6.

Ideally, your pool should be maintained at the lower level of 7.2.

Problem Solution
After testing the water, if the pH is too high (above 7.6):
  • Chlorine efficiency is reduced
  • Scaling of surfaces and equipment may occur
  • Water may become cloudy
  • Filter efficiency is reduced
To correct this condition, use a pH decreaser like liquid muriatic acid and granular sodium bisulfate.

This must be pre-dissolved in a bucket of water before being added to the pool

If the pH is too low (below 7.2):
  • Chlorine dissipates more rapidly
  • Water may be irritating to swimmers
  • Corrosion of equipment and surfaces may occur
To correct this condition, add a pH increaser directly to the water. Sodium Bicarbonate (Baking Soda) is less expensive and easier to use than soda ash.

NOTE: If your pH is low, then test the alkalinity before adjusting the water’s pH.

If the alkalinity is low, adjust this first and then retest pH the following day.

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