Warewashing equipment: Cleaning frequency.

A warewashing machine, the compartments of sinks, basins or other receptacles used for washing and rinsing equipment, utensils or raw foods, or laundering wiping cloths, and drain boards must be cleaned: 1. Before use; 2. Throughout the day at a frequency necessary to prevent recontamination of equipment and utensils and to ensure that the equipment performs its intended function; and 3. If used, at least once every 24 hours.