RO/DI Shelf Life

Rovert

Premium Member
I have a 4 stage RO/DI unit that's been unused and sitting in a basement for the better part of 10 years. Do you figure the media - particularly the RO stage - is still any good, or should I just bite the bullet and buy replacements?
 

kharmaguru

Premium Member
I have a 4 stage RO/DI unit that's been unused and sitting in a basement for the better part of 10 years. Do you figure the media - particularly the RO stage - is still any good, or should I just bite the bullet and buy replacements?
It's not likely any good, however it never hurts to try the RO stage and see what TDS you get. It would have had to be stored wet I believe, unless by unused you mean never used and it's still in it's wrapper. The DI portion will not be any good if it has been exposed to air and atmospheric moisture, so assume that for sure needs replacing. Again it never hurts to run some water through it all and test TDS. I would just for curiosity.
 
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