RO water and PPM

[RyanC]

So I decided to try going to the local grocery store and fill up jugs with RO water and when I got home and checked with TDS meter it was around 70 ppm.... I guess I thought RO water would be lower ppm should I not bother using??

 

[Lloyd Gordon]

That's not good quality RO water. I'm sure you can use what you bought but I would go elsewhere. I once bought RO water from Canadian Tire and it was less than 5 or so.

 

[RyanC]

Ok thanks I'll set it my Canadian tire sells

 

[Muckydoo]

Make sure the refill station didn't say that they remineralize it. I've seen ones that do RO and then they run it through a remineralizer to put minerals back in after "cleaning" the water through RO

The grocery store by me, Save-on (Western Canada only, sorry) has 0 ppm
The Sobeys had between 7ppm - 14ppm

I've never seen a water jug refill station at Canadian Tire though!?

The gas station I go to has a car wash attached but they also sell water because they have the RO system already, but a couple times it had a weird smell like they ran chemicals through it and it didn't rinse out properly.

 

[RyanC]

I went to superstore in Atlantic Canada (Maritimes) and was 70ppm

 

[Les serres de Paolo Inc.]

Should be close to 0 PPM. Like Muckydoo said, it’s possible they added mineral after the RO. It could also means the RO membrane is defective

 

[jackie quan]

70ppm is really high..probably to lazy to change the ro membrane filter and the store continues to sell it calling ro filtered water. Up here un Vancouver, i think tap water is 20 -30 as is.