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I'm currently just using a ball valve instead of the float valve, but when I open it up again to make more RO water, my output TDS starts off skyhigh at like ~100ppm. It drops back down to ~7-10ppm after a minute or so. Is this normal?
Yeah it is normal because there are salts in the membrane. You can flush the membrane before every use to avoid that.

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LOL, ban this robot :biggrin:
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