3-Comp Sink Air Gap Bubbling? Fix the Suds A three-compartment sink is common in food service work. It usually handles the wash, rinse, and sanitize steps. That means soap, hot water, and fast drainage happen often. One reader had a messy problem. An inspector required an air gap fitting on each sink well. Now each… Continue reading 3-Comp Sink Air Gap Bubbling? Fix the Suds