Rainwater is known to have acidic properties that can negatively affect your pool water chemistry balance. This can affect anything from the pH balance to alkalinity levels and more.Aside from rainwater falling directly into your pool being a bad thing, something even worse can happen. When you have rainwater coming off your landscape or deck, you now have an added source of water to deal with. When rainwater and ‘run off’ enter the pool, they can change your water’s pH, calcium hardness, salt level, alkalinity and other chemical levels as well as bring contaminants (e.g. debris, dirt) into the pool. Because rainwater is generally acidic then your pool water can become corrosive and cause damage to the interior and metal parts of your pool.The extent of the chemistry issues you’ll experience will depend on how much rain you get. A light rain, for example, should have very little affect on your pool water. Although, it is always best to be certain that your pool water chemistry is properly balanced at all times.
What Should I Do Now?
Keep ahead of the changes to your water by testing frequently during heavy rain periods. It is also a good idea to drain excess water, bringing your water to an appropriate level for proper skimming. If you have a Media Filter fitted with a multi-port valve, you can simply put it from filter to backwash mode, to eliminate the excess water without putting the water through the filter.
Come visit us in the shop (94 Canterbury Road, Camberwell East) for assistance on re-balancing your pool water after a heavy rainstorm.