R/O water smells skunky

[scherzo]

Our TDS is pretty low compared to Alberta's. If you're like me in Coquitlam. I get about 5-10 TDS right out of the tap.

Our RO membrane will filter most out and I even have zero going into my DI resin at the last stage. This is after 2 years and about 400-500 gallons.

I do flush often and I also change my carbon and per filter every 5 months or so. I still haven't changed my DI.

We're just lucky.

Originally Posted by Reef Pilot

I've heard that, too, but not so sure if that is true. I say that because I run an RO/DI system, and haven't changed out my DI media in over 2 years, and it is still good. Not only do I feed my RO/DI directly to my sump with my own DIY ATO dual float fail/safe system, but I also have 2 pressure storage tanks before the DI (but after the RO) in my system. So I always have about 10g or so of ready RO water, which quickly filters through the DI on demand. We use the RO side for house water in the kitchen too, and those storage tanks always ensure a ready supply for that, too.

My RO membrane is also more than 4 years old, and still working good. I have dual TDS gauges, one after RO (but before DI) and the other measure after RO/DI. However, I have a flush bypass valve (and DI bypass, too), and whenever my TDS from the RO gets over about 2 or 3, I do a flush (about every couple months). After DI, the water tds is still always 0.