As title says ? I get mine from maxwaterflow which is in Ontario . But not sure if there’s cheaper options out there ? If so please tell me and send a link
I bought mine from BRS, I use a cation cartridge, anion cartridge and a mixed bed cartridge, been regenerating it for years now.
The cation depletes 2x faster than the anion.
I'm pretty sure Ian has Kolar DI Resin in stock. He's been trying to keep it stocked up. Last order was 10 bags but it goes fast. If he sees it going too fast he tries to stock more to keep up to the demand. Also as a side note, he stocks some of BRS's products now so you won't have to worry about the exchange rate or the duties at all.
Regenerate it. Shit it should last 12 years. And that's regenerating the stuff every other day. At least ifnits anything close to the stuff we use at work