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Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement

Introduction

The piston assembly is a crucial component in a water softener system. This component will wear out over time and can cause your control valve to work inefficiently, bind, or not work at all. It is recommended that you replace the seals & spacers when you replace the piston.

What you need

  1. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Place valve into Backwash: step 1, image 1 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Place valve into Backwash: step 1, image 2 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Place valve into Backwash: step 1, image 3 of 3

    • Press and hold the red button (red) down while moving the gear (blue).

    • Using an 8mm Allen wrench, turn the gear until the arrow (yellow) is pointing to the "BW" cycle (green).

    Edit

  2. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Housing Locking Bars: step 2, image 1 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Housing Locking Bars: step 2, image 2 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Housing Locking Bars: step 2, image 3 of 3

    • To remove the red housing locking bars keeping the powerhead in place, pull back slightly then up.

    Edit

  3. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Brine Valve Connector: step 3, image 1 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Brine Valve Connector: step 3, image 2 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Brine Valve Connector: step 3, image 3 of 3

    • Pinch the Brine Valve Connector to unlock and pull out to remove.

    Edit

  4. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Meter Cable: step 4, image 1 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Meter Cable: step 4, image 2 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Meter Cable: step 4, image 3 of 3

    • Unlock the meter cable and pull it free from it's mount to prevent accidental damage.

    Edit

  5. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Powerhead: step 5, image 1 of 2 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Powerhead: step 5, image 2 of 2

    • Firmly grasp the powerhead and pull it away from the valvebody.

    Edit

  7. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Piston Assembly: step 6, image 1 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Piston Assembly: step 6, image 2 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Piston Assembly: step 6, image 3 of 3

    • Using a #2 Phillips screwdriver, remove the four screws securing the piston assembly

    Edit

  8. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Remove Seals and Spacers: step 7, image 1 of 1

    • Using your fingers, pull the seals and spacers out of the valve body.

    Edit

  9. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Lubricate New Seals and Spacers: step 8, image 1 of 2 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Lubricate New Seals and Spacers: step 8, image 2 of 2

    • Lubricate the center and outer edge of each seal and spacer using a food-grade silicone lubricant

    • Use of another lubricant can cause swelling and failure of components.

    Edit

  10. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Insert New Seals and Spacers: step 9, image 1 of 2 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Insert New Seals and Spacers: step 9, image 2 of 2

    • Insert the new seals and spacers into the valve body.

    • Install in the following order: seal then spacer.

    • The first one in will be a seal and the last one in before the piston will be a seal.

    Edit

  11. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Install New Piston Assembly: step 10, image 1 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Install New Piston Assembly: step 10, image 2 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Install New Piston Assembly: step 10, image 3 of 3

    • Lubricate the new piston assembly with a FOOD GRADE SILICONE LUBRICANT.

    • Slide the piston into the hole at the center of the seals and spacers.

    • Using a #2 phillips screwdriver reinstall the 4 screws securing the piston assembly to the valve body.

    Edit

  12. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Lubricate O-Ring: step 11, image 1 of 2 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Lubricate O-Ring: step 11, image 2 of 2

    • Lubricate the new o-ring (Ø28×2.65) that came with the new piston.

    Edit

  13. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Reinstall Powerhead: step 12, image 1 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Reinstall Powerhead: step 12, image 2 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Reinstall Powerhead: step 12, image 3 of 3

    • Align the tab on the piston with the slot on the back of the powerhead and push in to install.

    Edit

  14. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Reinstall Brine Valve Connector: step 13, image 1 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Reinstall Brine Valve Connector: step 13, image 2 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Reinstall Brine Valve Connector: step 13, image 3 of 3

    • Align the pin on the brine piston with the slot on the brine valve connector.

    • Push the brine valve connector down and to the front to secure it in place.

    Edit

  15. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Reinsert Housing Locking Bars: step 14, image 1 of 1

    • Press down to reinsert.

    • The Housing Locking Bars will only slide in the correct orientation.

    Edit

  16. Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Reinstall Meter Cable: step 15, image 1 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Reinstall Meter Cable: step 15, image 2 of 3 Canature 95MTS Series Control Valve Piston Assembly / Seal and Spacers Replacement, Reinstall Meter Cable: step 15, image 3 of 3

    • Slide the meter sensor into the valve body.

    • The meter cable will only slide in the correct orientation.

    Edit
Conclusion

Reconnect power to the valve and open the bypass to allow water into the valve. Take care to look for leaks.

You've now replaced the piston and seals/spacers in a Canature WaterGroup 95 valve, party on dudes!

Author

with 1 other contributor

N. T. Crotser

Member since: 06/13/22

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