Guys I attempted to set up an old ro system today. I changed the membranes and filters. Then started running water through it. I started flushing it and I've got water coming out 2 pipes as I should. There's a couple of problems though.3 hours later the water is coming out at a tds of 280 but my tap water is only 260ish. The water coming out of both tubes has the same tds. I'd have thought one would be higher than the other. Any ideas ??
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