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.