R/O issues

S

steelcaveman

Premium Member
I have been having issues with my R/O water.
Live in Dallas.
I have changed all my filters, the membrane, and the the DI resin.
The tap TDS is 161.
R/O before DI - TDS is 85.
After DI - TDS 20.
All filters/membrane/resin are from Bulk Reef Supply.

Not sure where the system is failing or if the water is so bad to start out with that this the best that can be expected.
I am barely getting 30 gallons per day. Last winter it was testing 0 TDS.

Any thoughts?
 
1. Is di filter right side up?

2. Take a sample of water in a clean cup to lfs to compare tds. Your tds meter may need to be adjusted


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If the membrane is working properly at 98% efficiency, the TDS coming out of the membrane would read 4. The DI would polish off the last of it. At 85, the DI won't last more than a week or two.
 
@Marc wrote:
If the membrane is working properly at 98% efficiency said:
I just didn't want to believe that my one month old membrane needs to be replaced.
You are right - I am going through DI resin like a bag of potato chips.
Click to expand...
 
From what you've posted, the problem seems to be the membrane itself.
 
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