Swimming pool discharge is not allowed in the sanitary sewer, but may be released to the storm drain if certain conditions are met. If you live in the City of San Marcos, please refer to the City of San Marcos' stormwater requirements as listed below. (If you live in another jurisdiction, please contact the stormwater department for your area).
Discharge regulations for pool water
- The residual chlorine does not exceed 0.1 mg/l (parts per million). Pools can be dechlorinated by letting the pool sit for 3-5 days prior to discharge and monitoring the pH and chlorine levels.
- The pH is between 6.5 and 8.5. Testing kits can be purchased at local pool supply vendors.
- The water is free of any unusual coloration, dirt or algae (no “green” present). The pool must be drained before it turns green.
- There is no discharge of filter media.
- There is no discharge of acid cleaning wastes.
- Discharge is water only (cannot carry debris or vegetation with it).
- Discharge contains no chemicals to counteract the chlorine.
- Discharge contains no hydrogen peroxide based products.