changing filter on RO/DI

[janastasio]

I need to change my filters and membrane on my RO/DI unit. Havent done this before. On the top tube, where the membrane is, does this generally unscrew to replace the membrane? I tried to get this off to look at it, but could not. Is the top tube replaced as a whole, or does it unscrew and you replace a component inside? Thanks! Its a kent maxima unit 4 stage.

 

[mr_x]

that top cannister will hold the R.O. cartridge. it unscrews and the blue cartridge inside will be replaced. atleast it does on my unit, and all the others i have seen.
buy the replacement and look at it. if it is a completely encased thing like what's on your unit, then you just replace it. i don't think that's the case though.
use some large channel lock pliers to help you get it open.