Well I finally got my RO/DI TDS down to zero,a couple of weeks
before I filled up the tank put all new filters and new membrane on.
and instead of checking RO output right away I just filled up my
two containers and when I did check them it was very high, well
ended up I did'nt have the membrane seated all the way, after
reinstalling the membrane TDS after double DI was 25 TDS.
next tried heating up water threw a coil in a bucket with heaters.
Nope no change, ARGH next finally bought a booster pump, that
really helped with output and lowered my TDS out of RO to 14 TDS.
In water at last check was 540 TDS. Before pump RO was 23 TDS.
Then it finally dawned on me the first time I filled the containers
it totally trashed out both DI cartridges. Well I just got the refillable
DI cartridges and it was cheaper for those and 2 refills each than
what it almost cost for one cartridge, ARGH should have done that a long time ago, well alls good now.
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Dave