Jackson dishwasher tank drains down slowly or not completely between shifts.

Safety first: Disconnect power and allow water to cool before working on the drain system.

• Clean internal strainers: Remove and clean all tank strainers and scrap baskets.
• Inspect drain valve: Open and clean the drain valve body. Remove any debris or scale preventing full opening.
• Check drain hose routing: Ensure the hose has proper slope with no sags that trap water and debris.
• Flush external plumbing: If building drain is slow, have a plumber clear grease and obstructions from the trap and line.

After cleaning, perform a manual drain and time how long it takes to empty; compare to normal performance.