Jackson dishwasher leaves white chalky film or spots on glassware and dishes.

Safety first: Use gloves when handling descaling chemicals.

• Check water hardness: Test incoming water hardness. If above Jackson’s recommended range, install or service a water softener.
• Adjust detergent and rinse aid: Work with your chemical supplier to match detergent type and concentration to water hardness. Increase rinse aid dosing to improve sheeting.
• Descale machine: Run a descaling cycle using a manufacturer-approved descaler to remove existing mineral deposits from tank, booster, and spray arms.
• Verify rinse temperature: Ensure final rinse temperature is within spec; excessively high temperatures can cause spotting.

After adjustments, run several racks and inspect glassware for improvement.