<a href=showthread.php?s=&postid=15740999#post15740999 target=_blank>Originally posted</a> by Lightsluvr
I agree with that! Even though most LFS only charge $1.50 (MOL) for 5 gallons of RO water, there still is the cost for gasoline, jugs and general annoynace when you need water after store hours...
When I bought a cheap TDS meter, I found that RO water from the LFS often contained 50-90 ppm of dissolved solids.
After I bought my own inexpensive RO/DI filter (eBay), I have seen zero TDS in my water. It was a great investment!
LL