Battery operated TDS meter monitors the water quality and lets the user know when to change the resin. Robust, wheeled cart makes moving and using the system strain-free. Use for spot-free results on windows, awnings, exterior building cleaning and any heavy-duty cleaning job.

Capacity: 600 gallons of DI water is produced before the resin cartridges requires a change.

DI cartridge size: 20" tall
 

Bulk Resin Refills for DI-225 Replacement bulk-packaged resin for the DI-225 system. Save money by refilling the cartridges which come standard with the DI-225 system with bulk packaged resin. Change resin in less than 5 minutes! Just twist open cartridge, properly dispose of old resin, rinse and add new resin. Sold in sets of 2 bags.

• Weight: 4.5 lbs each bag
• Pack Qty: 2
• Product Size: 9 lbs

• Chemical method.
• Water is flown through a cylinder that is filled with ion exchanger resin.
• The ions to be replaced (electrically loaded particles) are bound to the resin, which in turn releases ions itself.
• In the process, the water is softened, i.e. all minerals (salts) are removed from it.
• The process works only as long as there are enough ions available in the resin.
• After this, the resin must be "regenerated"  by means of a chemical process or replacement of the resin as shown above.