you cant sit there and say walmasrt is good or cdn tire is good...
It comes down to how the staff are maintaining their filters and this is not subject to store names...so your experience at each location could vary greatly.

Buy a TDS meter, they actually sell them pretty cheap at canadian tire...lol

and just test yourself before you buy.

I'd also suggest getting a TDS meter. Much better at figuring out if you need to change your cartridge or not.

Also, from a water conservation standpoint. I like the DI unit because it doesn't produce any waste water. We have very low TDS so I'm sticking to my DI for a while. I've actually budgeted for a BRS RO/DI unit but I'm still deciding if I want to create waste water that just gets dumped... it makes me feel bad..

I get a TDS as low as 8ppm.. most days it is about 14 or 15. I'm about 2 kms from the Coquitlam watershed so I'm lucky that way...

call me at 604-908-6009 for free RO/DI water.

Cheers,

Romin

FREE water
 

I hope this 2nd message finds you.

You can pick up your FREE RO/DI water from me.

COQUITLAM.

Call me at 604-908-6009 anytime after 9:30 AM.

Romin

I've been using Vancouver's tap water for quite some time now and I have no algae and my SPS have better colour than when I bought them. I wouldn't worry about an RO/DI to be honest.