Quote Originally Posted by glarior View Post
I have a buckeye field supply 100gpd RO/DI unit with extra carbon filter. I make ~5 gallons of water a day and more when I need it. My media burns up really quick since my water is horrible and contains 450+ TDS and lots of chlorine. I have three 4.5"x20" filters with removable cartridges. Is there a way to use those or incorporate the big filters with the RO/DI unit? I want to buy the media in bulk (anyone know of a good place?) and have it last longer. Seems like I change those small filters every 1-2 months. For the price of one filter change on my small unit I can buy the carbon filter, 5lbs DI resin and sediment filter for the 4.5"x20" filters
Sure - you can use any size housings - we have filters and refillable cartridges in these sizes:
10" x 2.5" (what people consider "standard")
20" x 2.5"
10" x 4.5"
20" x 4.5"

But before you start changing your system around, some questions for you: You said "My MEDIA burns up really quick since my water is horrible..." What media are you talking about? Just the DI resin? If so, then installing larger prefilters (all the filters that touch the water before the membrane) won't help. Understand that it is primarily the RO membrane that removes TDS, and the DI resin removes the last little bit from the RO water. The prefilters don't remove TDS, so using larger prefilters won't make your DI resin last longer.

Ramsey was going down the right road above.

What is the TDS of your Tap water? RO water? DI water?
What is your pressure?

Russ