Hello, i live in a city with factory nearby, is it possible that the rain water ppm is so low ?
i tested the °KH it change color after 1 drop, so kh <= 1, it's better than the RO water i used in the past, the roof is in glass, maybe that's why ?
i tested the °KH it change color after 1 drop, so kh <= 1, it's better than the RO water i used in the past, the roof is in glass, maybe that's why ?