There have been a number of RO/DI filter questions lately and I'm still gobsmacked that people are throwing out all kinds of figures as to how long between changes of various filter elements but not ONE states how many GALLONS PER WEEK/MONTH they pump through the thing !!
The whole equation boils down to the quality of the water from your tap and how much of it you put through the system per unit of time.
Tony changes out his filters at 6-8 weeks ! I change mine once a year. Tony seems to get his water from a sewer line (800 ppm !!!!); mine's at 100 or less.
I currently have a system volume of about 35Gal and I change 5 gals each week. Tony has a much bigger setup and I don't know what his W/C regimen is.
All that to say, ignore any suggestions on when to change unless they tell you their input TDS, and how much they use it each week !
Personally, I think if the water SMELLS off then I'd dismantle the whole thing and clean it out -AND change out all the filters.
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-Mark
29 Gal Bowfront w/24" LED Lights. DIY HOB Sump (5.4 Gal) MP40. Orange Spotted Watchman Goby, 2 Clownfish and a few hermits.
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