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.