The optimum PH for swimming pool water is 7.4. It is necessary to test in order to keep your pool safe and clean and prevent pool equipment damage. The more you use your pool, the more you should test, but 2-3 times per week is a good rule of thumb.
PH Indicator Strip, Litmus Paper
Between chlorine, pH testing strips, and other materials, the average pool owner spends roughly $80 per month for above ground swimming pools and $95 per month for inground swimming pools.
Costs vary greatly by region (and even by zip code). To get free estimates from local contractors, please indicate yours.