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What Size Electrodes or Replacement Chamber Do I need?

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There are only two options in electrode and chamber sizes, 2" or 1 1/2".  There are a couple ways to determine what size is needed:


Type of system: 

  • If you have an in-ground swimming pool or pond you will need the 2" electrodes.
  • An above ground swimming pool or water feature under 10,000-15,000 gallons needs 1 1/2" electrodes.
  • An above ground pool over 15,000 gallons may need 2" electrodes but this is unlikely.  Try the next method to determine what size is needed.
  • A spa system needs 1 1/2" electrodes.


Circumference of Chamber:

  • 2" chambers are about 8" around the clear pvc.  Needs 2" electrodes.
  • 1 1/2" chambers are about 6.5" around the clear pvc.  Needs 1 1/2" electrodes.


Size of Titanium Electrodes: 

  • Because titanium electrodes don't change size, they can be measured to determine the size of all the electrodes in the chamber.  2" titanium electrodes are 2 inches wide so that they will fit into the 2" chamber.
  • 1 1/2" titanium electrodes are 1 1/2 inches wide so they will fit into the 1 1/2" chamber.


If you do order the wrong size of electrodes, please just let us know so we can arrange return shipping and exchange.


Note:  The chamber is made of pcv and warps with use.  It may seem the electrodes are too large to fit but it is usually due to this warping.  Something like a metal file can be used to create a groove in the lip of the chamber to get the electrodes to go in.  It is possible that you have the wrong size if a little groove will not help the electrodes into the chamber.  Give us a call and we'll help figure it out.

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