RO Water Smell

dvybiral · Dec 29, 2018

Hello Reefers,
I have a five stage RO system, and I run two BSR 1 micron carbon blocks, color changing DI resin, with a Dow membrane and a sediment filter. My RO water reads 0 at the TDS meter, the water has a strong odor like sulfur. any ideas of how I can correct this odor, and is it affecting the quality of the water?
Thanks for your help

Scotty Buttons · Dec 29, 2018

How old are the filters? How many gallons have you run thru it?

dvybiral · Dec 29, 2018

I just changed the filters before Christmas all except the sediment filter

marvelousone · Dec 29, 2018

mine did that and it was the membrane.

dvybiral · Dec 29, 2018

Hi marvelousone, thanks for your reply, so you changed membrane and that fixed the smell? Do you think that the smell changed the water quality?

marvelousone · Dec 29, 2018

dvybiral said:
Hi marvelousone, thanks for your reply, so you changed membrane and that fixed the smell? Do you think that the smell changed the water quality?

The water coming out was testing 1 on the inline tester that came with the unit. I changed the filters carbon, sediments and the di resin. the smell was still there. After about two weeks I decide to change the membrane. I told myself it was not it because the water tested ok. After changing it the smell went away. Let me tell you the smell was strong. I keep two 55 gal cans full.

Hemmdog · Dec 29, 2018

marvelousone said:
The water coming out was testing 1 on the inline tester that came with the unit. I changed the filters carbon, sediments and the di resin. the smell was still there. After about two weeks I decide to change the membrane. I told myself it was not it because the water tested ok. After changing it the smell went away. Let me tell you the smell was strong. I keep two 55 gal cans full.

Ewwww lol