Why does your pool's PH keep increasing?
Gunite and plaster have a high demand for acid because of the lime in the cement. And or high calcium make up water.
Your pool will naturally increase in pH due to swimmer's waste, sweat, urine, etc...
Keep your pH at 7.6-7.8, not 7.2. 7.2 pH is base upon the Langelier Index which was used for local water companies, but there's a world of difference between pools and how the water company treats your tap water. Good index but bad application for pools.
Private pools are often chlorinated with hypochlorite CaOCl2 What is the long term effect on the pools pH after adding?
Pools are aerated to prevent stagnation..... no this guy doesn't know what he is talking about. .. pools are aerated to help control the PH lvl easyier. Aeration adds oxygen to the water which eliminates the carbonates in the water which messes with the PH and unbalances the water. Aeration eliminates carbonates and controls the PH without as much of the chemicals needed. Cheap way to control pH lvl