I live in a place with hard water and the tds reads over 300 when I test it. I got a new RO membrane and Di resin and when it is all new there is 0 tds in the filtered water. How ever not long after the tds readings go up to around 10 tds. I was not wanting to use this water so went to my lfs and got water from there and asked them about it and they said saying it's such bad water round here 10 tds is not bad for it and is safe to use. What do you guys think? I was surprised they said that instead of trying to get me to go back to them more often!
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