Are catchment systems vulnerable to pollution and acid rain contamination?
Properly covered and outfitted with a first flush system, your tank can be the cleanest water source you can obtain for residential water. However, if the rain in your area is particularly acidic you may want to add a little baking soda from time to time to keep your PH balance within a safe range. You can monitor PH levels with a pool type tester. Maintain your tank as close to a neutral PH as possible.
