RO/DI question for calgary city water

[kwirky]

Anyone run a DI unit on their RO, or wish they were running one? I'm debating between getting DI or not. Seems the benefits are pretty good, and if I find it's not worth it, I could disconnect the DI cartridge once it's run out.

I've called around the city, and they can't seem to beat J&L Aquatic's prices on their DI/RO units. Except J&L doesn't sell the replacement membranes for the AquaFX units...