Swimming Pool Discharge
Simply dumping your chlorinated pool water into a storm sewer is unacceptable. It is a violation of the Clean Streams Law and can result in fines. It is unsafe to all kinds of animals, and even to you.
How to Safely Discharge Chlorinated Water
Once the chlorination system has been shut off or chlorine has stopped being added to the water keep the water in the pool/spa/fountain for seven to ten days to allow the chlorine to naturally evaporate in the sunlight.
However, chemical neutralization is the most effective way to clean pool water. De-chlorination additives can be purchased at your local supply store and can be used to speed up the dechlorination process.
Use a test kit to measure the chlorine level and pH in the water. The water should not show any detectable levels of chlorine and the pH should be neutral between 6.5 and 8.5.
After water is dechlorinated, you may discharge the water under the following conditions:
Avoid creating conditions that cause flooding in the street or ponding.
Run the pool water through the grass to clean it and slow and decrease the flow into the storm sewer.
Avoid discharging when it is raining.
Pool water should be put into a storm sewer. After being de-chlorinated the water does not need to go through the sanitary sewer.