I use a simple inline water filter on my tap water for the chlorine.Lol I feel ya. I didn't want any unknown variables messing me up so I went with the RO, I just need to water with cal-mag at every watering. Only major difference. If I had an air stone or patience I might be able to use my tap water after letting it aerate for a day or two but I don't and that seems like a lot more work than driving 2 mins and spending 3 dollars on 12 gallons of good water haha
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