Drain System & Clean Filters

What happens here

After flushing, the presenter opens the filter system to completely drain the tank. He removes and cleans the filter cap, explaining that if the valve were closed, the water would recirculate instead of draining. He then emphasizes cleaning all small filters within each spray tip, which he will do later in the kitchen. He raises the sprayer to ensure all remaining water drains.

Goal: Completely drain all water and clean all filters.