Doesn't a RO with a new membrane need to be run for a while before it starts producing clean water, can remember running mine for at least an hour when I 1st got itLee
That hose in your hand - is that all pipe from the feed? Do you have a hand held meter to check the product water? I'm wondering if the meter is working because i would have thought that even the pre-filters would drop the tds partially even if you had no membranes at all.
i kowe i shudent say but is it a genuin RO as iv herd thers sum fakes out ther so this is just a
Take the mebranes out and reseat them in the housings.You havent got them in the wrong way round have you? There should be a rubbery flange around the end part of each membrane.It is the other end that goes into the housing first.Dan