Chapter 31A — SYSTEMS FOR WINDOW CLEANING OR EXTERIOR BUILDING
Section 3138B — SPA POOL SPECIAL REQUIREMENTS
2025 California Building Code (Title 24, Part 2) · 2025 edition · ingested 2026-07-07 · California
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3138B.1 Aeration system. ¶
3138B.1 Aeration system. A spa pool aeration and/or jet system shall be completely separate from the recirculation system and shall not be interconnected with any other pool.
3138B.2 Maximum operating temperature. ¶
3138B.2 Maximum operating temperature. The allowable water temperature of a spa pool shall not exceed 104° F (40° C).
3138B.3 Surface area. ¶
3138B.3 Surface area. The water surface area of a spa pool shall not exceed 250 square feet (23.23 m [2] ).
3138B.4 Maximum depth. The water depth in a spa pool shall not exceed 4 feet (1220 mm). ¶
3138B.4 Maximum depth. The water depth in a spa pool shall not exceed 4 feet (1220 mm).
3138B.5 Emergency shut off switch. ¶
3138B.5 Emergency shut off switch. A clearly labeled emergency shut off switch for the control of both the recirculation system and the aeration and/or jet system shall be installed adjacent to the spa pool.