Where is the inline installed? , my 75gpd BRS 5 stage has a built in TDS , and always reads 1 or 2 for the IN , and 0 for the out. Pretty sure where the TDS meter is installed , it's reading the IN ,after all the filters and membrane , and the out is reading after the DI resin. So I know with mine , it doesn't tell me what the water TDS from the tap is.
Last edited by Wheelman76; 04-23-2017 at 06:47 AM.
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