somethings up with my RO/DI unit (6 stage)... i just changed my filters, sediment filter, carbon filter, carbon block filter, DI filter and in-line granular activated carbon filter.. when i just put it on the TDS reads anywhere from 20- 36 then i let it run for a lil bit and goes down to 4.. does this every time i sart it?? anyone have any ideas? and the membrain is a year old.
one question, should the DI be last filter?
one question, should the DI be last filter?