Does Reverse Osmosis change the pH balance of the water?
The pH difference after the RO depends on the composition of your water source, such as large amounts of CO2A gases present in the water. If you are concerned with the pH of your drinking water, you should avoid guess work and get your water tested with an accurate pH test meter (avoid paper test strips as they are very inaccurate with pH readings). Reverse Osmosis water generally has a pH of 6. If low acidid water is a concern, you can consider adding a calcite filter as the final stage of your Reverse Osmosis system to easily correct an acid water problem. In a calcite filter acidic water slowly dissolves the calcium and magnesium media as water flows through the filter, raising the pH of the water and increasing alkalinity.
