With the liquid concrete that comes out of my tap, I use an RO/DI unit to make it suitable for the plants and fish I keep. I mix RO/DI 70 percent to 30 percent tap, giving me pH 6.8, gh 4 to six, depending on the time of the year. I use straight RO/DI for top off.
Dave
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And you know, that you're over the hill, when you mind makes a promise that your body can't fill . . .
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