RODI unit

rtparty

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Idk what to tell you I’m getting 0tds after resin and change resin out after 1.5 to 2 months while supply drinking water and faucet water. Not everything needs to come from BRS is what I’m saying.

There are multiple places to buy canister style RO setups. It doesn’t have to be BRS but this system here isn’t the answer
 
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keatonmjenkins

keatonmjenkins

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Idk what to tell you I’m getting 0tds after resin and change resin out after 1.5 to 2 months while supply drinking water and faucet water. Not everything needs to come from BRS is what I’m saying.
I wholeheartedly agree that nothing has to come from BRS…. there are numerous vendors for great filtration systems! — my notes are about the physical design of this 600GPD RODI system…

I also get 0tds after my resin, but change it maybe once a year…

I also have drinking water at two faucets, RO to my ice maker, etc… two 2.8G accumulator tanks strategically placed so I can fill a pot in under a minute for cooking…

I’m here telling you that your system is designed around maximum numbers, not water quality… due to this, you will be consuming DI resin exponentially faster than a system designed around maximum water quality!

Take this information as you will, it’s a simple statement of facts!
Changing it once a year seems odd I don’t think I’ve ever heard of anyone getting a years use out of a can of DI.
 

UncommonSense

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Changing it once a year seems odd I don’t think I’ve ever heard of anyone getting a years use out of a can of DI.
This is a dual DI cartridge system, so let’s call it 6 months for a single cartridge… better?
 

JayM

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Changing it once a year seems odd I don’t think I’ve ever heard of anyone getting a years use out of a can of DI.

I’m just over a year in with my original DI cartridge and TDS is still at zero after well over 5000 gallons run through it.
 

rtparty

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Changing it once a year seems odd I don’t think I’ve ever heard of anyone getting a years use out of a can of DI.

When my 250g system was up and running, I was going through 15g of RO water for topoff and another 15-20g of water for water changes per week.

I have the BRS 7 stage system and only replaced the anion resin once a year. In the 5+ years I’ve had the unit I’ve replaced the cation once, anion 2 or 3 times, and mixed bed once. My tap TDS is like 400 or so. After the sediment, dual carbon blocks, and RO membrane my TDS is 1-2
 

KStatefan

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Same reason you get an electric pump from BRS to improve water pressure for membrane and resin.

Can not compare what is nest for DI with a membrane. You use a booster pump to raise the pressure differential across the membrane the greater that is up to the max the better performance both production and rejection. DI resin pressure does not mater how long it takes to flow thru the resin is what is important.
 

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