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Section 314 Return and Suction Fittings
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Entrapment avoidance means shall be provided in accordance with Section 310.
Where multiple systems are used in a single pool to meet this requirement, each subsystem shall proportionately be designed such that the maximum design flow rates cannot be exceeded during normal operation.
Where installed, submerged vacuum fittings shall be accessible and shall be located not greater than 12 inches (305 mm) below the water level.