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View Full Version : help with filter order for ro unit


madreefer14
07/03/2007, 09:04 PM
Whats the best order to put the filters for an ro/di unit? sediment, carbon, ro, di or sediment, carbon, di, ro. or does it really matter. while were on the subject of filters, does anyone know how your supposed to hook up a flush kit for these? Thanks. :hmm3:

marduc
07/03/2007, 09:10 PM
sediment, carbon block, RO, then Di

flush kit is just prior to the RO,, I made one myself though.. post RO
.. 2 quick connect valves, one to a flush (waste) line, the other continues to the Di unit. Prior to taking water out of my resevoir (shut off valve) I close the line from the Ro to the Di, and open the waste line. I then flush for a few minutes until (I have a TDS monitor dedicated to post RO detection) I see a reading of <10 ppm, Doesn't help extend the RO life, but it does help immensely for he DI lifespan.

madreefer14
07/03/2007, 09:25 PM
ok, dumb question. Where does the flow restrictor go? on the waste output right?

kau_cinta_ku
07/03/2007, 10:55 PM
no it goes before the membraine. your prob thinking the flush valve

sanababit
07/03/2007, 11:38 PM
mad it goes on the waste output line right after the membrane, the long tiny tubing goes in first into the 1/4", good luck

sana

kau_cinta_ku
07/03/2007, 11:47 PM
oh sorry sana is correct i got things mixed around sorry