Where can filter backwash or wasted water be disposed?
The Maricopa County Environmental Health Code Chapter VI, Section 3, Regulation 21(b) states; "Filter backwash and wasted swimming pool or spa water shall be discharged into a sanitary sewer through an approved air gap, an approved subsurface disposal system or by other means that are approved by the Department. The method of disposal shall comply with applicable disposal requirements established by a municipal or other local authority. There shall be no direct physical connection between the sewer system and the water circulation system of a public or semipublic swimming pool or spa."

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1. What are the minimum design requirements?
2. Do you have guidance for design features not listed in the regulations?
3. What is my pool's maximum allowed bathing load?
4. What is my spa’s maximum allowed bathing load?
5. What are the requirements for water used to fill a pool, spa or bathing lake?
6. Is drinking water required at a public pool or spa?
7. Must a pool, spa or bathing lake be disinfected?
8. Where can filter backwash or wasted water be disposed?