How do I recharge deionizing cartridges?

[pwitt441]

How do I recharge deionizing cartridges and how many times can you do it? It is for the Aquarium Pharmaceuticals, Aquarium Pharmaceuticals Tap Water Purifier. I have read you can recharge them.

 

[mr. green]

Large system DI beds are "recharged" almost daily with Caustic and Acid backwashes. I don't think the small DI systems we buy and use are able to do this. You may need to just buy a new DI cartridge.
I could be wrong, but I have never heard this being done.