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City POE Maintenance Schedule

Electrode Cleaning

  • The electrodes and electrode chamber should be cleaned once per year.  
  • In areas where water is very bad, the chamber and electrodes should be cleaned 2-3 times per year, or whenever there is buildup on the electrodes.

How To Clean The Electrodes And Electrode Chamber

Items Needed:

1)  Turn off the water to the house and close valves to make sure water doesn't leak while the chamber is removed.

2)  Slip the wires off of the metal tabs on the outside of the chamber.  

3)  Unscrew the union ends at either end of the chamber.  Be careful not to crack the chamber.  If the ends are screwed in too tightly to turn, use a strap wrench.  *Do not use channel locks!.

4)  Take the chamber out of the plumbing line, but do not remove the electrodes.  The entire chamber gets submerged for cleaning.

5)  Create a solution of 5 parts water to 1 part liquid muriatic acid, or Acid Magic.  Pour in the water first and then the acid to keep from splashing acid.

6)  Submerge the entire chamber in the acid/water solution for 5 -10 minutes.  The chamber will bubble.  When the bubbling stops the electrodes and chamber are clean.  *Do not use anything to scrub or scrape the electrodes which will damage them).

7)  Remove the chamber and rinse.  Replace the chamber into the plumbing line.  Do not over tighten.  Hand tight is sufficient.  Tighten until there is no more leaking. 

8)  Reconnect the wires.  (Red and Green wires go to the copper electrodes.  Black and White wires go to the titanium electrodes.  

9)  The titanium electrodes are first in the flow of water, the copper electrodes are last.

10)  Open the valves and turn the water back on to put the system back into service.

Electrode Replacement:

  • Copper electrodes should be replaced every 5-8 years.
  • Titanium electrodes will probably never need to be replaced with proper care.

Items needed to replace the copper electrodes:

  • Clear silicone
  • Electric screwdriver

1)  Turn the water off to the house and close the valves to make sure water doesn't leak when the chamber is taken out of the plumbing line.

2)  Slip the wires off of the metal tabs on the outside of the chamber.

3)  Unscrew the union ends on each end of the chamber being careful not to crack the chamber.  If the ends are too tight to unscrew by hand, use a strap wrench.  *Do not use channel locks!!

4)  Unscrew the copper electrodes from the chamber and allow them to drop out.  Don't let them scratch the titanium electrodes.

5)  Put one new copper electrode in at a time.  

6)  Balance the new copper electrode over the screw hole and attach the new electrode into the chamber.

7)  Repeat for the other copper electrode

8)  Put a bead of silicone around the outside of the rubber grommet on the outside of the electrode chamber - to prevent leaking from the screw holes.

9)  Put the chamber back in the plumbing line.  Do not over tighten.  Hand tight is sufficient.  Tighten until there is no leaking.

10)  Attach the wires to the chamber.  Red and Green wires go to the copper electrodes.  Black and White wires go to the titanium electrodes.

11)  The titanium electrode are first in the flow of water, the copper electrodes are last.

12)  Open the valves and turn the water back on to put the system back in service.

Filter Media Replacement: Threaded tank only

The filter media should be replaced every 5-8 years.

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