Inside a worn garbage disposal: rusty grinding plate and lugs seen from the sink

Installing a sink-top air switch for a garbage disposal (button, air tube and power module)

An air switch uses a push button on the sink deck or counter that sends a puff of air down a plastic tube to a power module under the sink. The disposal plugs into the module; each press toggles it on or off. Nothing electrical is on the counter. The module plugs into a grounded 120 V outlet that is always on (not switched). The button fits a standard sink hole or a 1-1/4 in hole drilled in the counter. Dual-outlet modules (used when an instant hot water tank shares the sink) have their own rules for which outlet is switched; read the kit sheet.

Single source ~40 min easyBrands: InSinkErator, All

Before you start

The disposal may start when the module is plugged in; press the button once to stop it, and keep hands out of the disposal
Use an outlet that is always powered; if the under-sink outlet is on a wall switch, the switch must stay on or the outlet must be rewired by someone qualified
Drilling stone or quartz counters needs the right diamond bit and water; if unsure, use a free sink or faucet hole

Diagnostic steps

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