Culligan Mark 100 Owner's Manual page 11

A periodic clean-out of the Salt Storage Tank is necessary to keep your Culligan Water Conditioner at peak operating efficiency.
Do it at least every 2 years when the salt supply is low. Follow these step-by-step procedures:
Tools needed:
• Scoop
• Clean, bucket-size container
• Phillips-head screwdriver
• Garden hose, Household scrub brush or sponge
1. Remove the salt storage tank cover and the cap from the brine valve chamber.
2. Lift the brine valve out of the brine valve chamber and set aside in an upright position.
3. If you'd like to save any clean, dry salt remaining in the tank, remove it and place it in a clean container.
4. Using the scoop, dig out and discard as much remaining salt, water and debris as possible.
5. Remove the brine valve chamber by removing the chamber retaining screw and nut.
6. Remove the salt plate at the bottom of the tank.
7. Lay the salt tank on its side and direct a brisk stream of water from your garden hose to its inside to rinse out all residue.
8. Using a household scrub brush and a mild soapy solution, clean the salt plate. This will complete the tank cleaning.
9. Stand salt tank upright. Make sure to place the tank on a flat, smooth, solid surface.
10. Replace the salt plate. Place brine valve chamber in position and affix with screw and nut.
11. Insert the brine valve into the chamber and replace brine valve chamber cap.
12. Fill the salt storage tank with 4 to 6 inches of water.
13. Fill the tank with salt to within a few inches of the top.
14. Replace salt storage tank cover.
To Clean Out the Salt Storage Tank
TO CLEAN OUT THE SALT STORAGE TANK 9