recharging

Here is something different as I am cleaning out my closet. Perhaps somebody needs one (or two) in very clean condition. Powerex MAHA MX-C9000 Wizard One Charger / Analyzer. $34.99 shipped from NY via Brown & Co. See picture, these are really great if you want to...

Has anyone tried to recharge or successfully recharged deionization resin? I found this interesting video on how to do it. You need two things you most likely already have: RO/DI water TDS meter. Two dangerous solutions you don't want to leave around children: 5% hydrochloric acid solution...