grocery store water

[dixonstanley50]

has anyone ever got ammonia and nitrates in RO grocery store water. i thought id test some just to see what the actual color was for zero, but it looks like ammonia is .03 and nitrates are 5 to 10 is this even possible with RO water or are they just selling me tap water?

 

[Mandarin66]

have you ever drink it and see?

 

[Smitty]

They're not changing their filters as often.

 

[Bifferwine]

It happens a lot. As Smitty said, stores aren't always careful about changing their filters as often as they need to. That's why it's still important to test store-bought waters.

An LFS here used to sell "RODI water" that had nitrates at 20+. Buyer beware!

 

[PRC]

Why wouldn't you have them test it at the store before you bought it?....Kinda along the lines of asking them to feed the fish before you buy it.

 

[Bifferwine]

I guess because people take it for granted that their LFS is selling them good water. :dunno:

 

[dixonstanley50]

thats not even at a lfs.....the closest one is 2 hours away that is just the grocery store. But i did find a store that had water with no nitrates! seems like all 3 sources of RO water in town have a small amount of ammonia tho