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Phone: 206-296-4600
TTY Relay: 711

Toll-free: 800-325-6165

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Instructions to submit a Public Records Request

Domestic dishwasher waste discharge diagrams

Dishwashers must connect to drainage through an approved air gap fitting choices

diagram of how dishwashers must connect to drainage through an approved air gap
2" drain

At finish counter air gap fitting

Locate airgap above counter.

diagram of finish counter air gap fitting