How to Service, Clean, and Rebuild a Hydrominder

Kleen-Rite and its customers were lucky to have Tom Allen teach us about car wash operations for many years before his passing. This is a re-post of one of his more popular tutorials where he explained how to service a hydrominder. You will need a 1/4″ nut driver or a #6 flat head screwdriver.

Hydrominder instructions Step 1

Step 1. Turn water valve off at hydrominder inlet.

Hydrominder instructions Step 2

Step 2. Remove hex nut on top of magnet cap with flat head screwdriver or nut driver.

Hydrominder instructions Step 3

Step 3. Lift off magnet cap.

Hydrominder instructions Step 4

Step 4. Hold down on magnet and remove magnet yoke.

Hydrominder instructions Step 5

Step 5. Remove magnet and magnet spring.

Hydrominder instructions Step 6

Step 6. Remove discharge and pickup tubes.

Hydrominder instructions Step 7

Step 7. With 1/4″ nut driver, remove the 3 screws that hold valve body to bracket.

Hydrominder instructions Step 8

Step 8. Removed plunger assembly and stem from valve body.

Hydrominder instructions Step 9

Step 9. Remove diaphragm from valve body. Inspect, clean, or replace diaphragm.

Hydrominder instructions Step 10

Step 10. Inspect, clean, and/or replace plunger and spring assembly.

Hydrominder instructions Step 11

Step 11. Replace spring and plunger back into stem.

Hydrominder instructions Step 12

Step 12. Put diaphragm on top of stem assembly.

Hydrominder instructions Step 13

Step 13. Insert stem assembly back up through bracket and then bring valve body back up to stem assembly and place together being careful that the diaphragm and plunger assembly doesn’t pop out or get lost.

Hydrominder instructions Step 14

Step 14. Re-tighten the 3 screws that hold bracket and valve body together.

Hydrominder instructions Step 15

Step 15. Reinstall spring and magnet back onto stem.

Hydrominder instructions Step 16

Step 16. Reinstall magnet yoke and replace the magnet cap.

Hydrominder instructions Step 17

Step 17. Screw the magnet cap back on.

Hydrominder instructions Step 18

Step 18. Remove colored tip and suction stub.

Hydrominder instructions Step 19

Step 19. Inspect, clean, or replace the colored tip and suction stub.

Hydrominder instructions Step 20

Step 20. Reinstall pickup and discharge tubes.

Hydrominder instructions Step 21

Step 21. Turn water valve back on.

Hydrominder instructions Step 22

Step 22. Manually pull down on magnet yoke to test water and chemical draw, and then let go again. If the magnet clicks, it is in the ON position. It is now ready to go!

Watch a video of this tutorial on our YouTube channel!

, |, |, |, |
Previous Post
Operator Spotlight: Johnny’s Car Wash
Next Post
The Vacuum Prospector
Menu