KINGSTON KITCHEN & BATH INSTALLATION INSTRUCTIONS Switch Button Instructions: 1. Mount the air switch button through a diameter hole in the sink counter. 2. Place the washer between the push button and toe top of the sink counter. Tighten the plastic nut under the sink counter to ensure well installation. 3. Attach the air tubing between the pushing button and power module. Push the tubing tightly onto the molded protrusions. 4.