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Subject

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Date

09-17-2005

Posted by Billy on September 17, 2005, 7:59 pm

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I have a 100gpd RODI unit (purchased from Marc) and less than 2
months ago I replaced the cartridges. The previous set lasted nearly
six months, and my usage has not increased very much in that time.
However, the DI unit is already fully discolored, indicating
exaustion. What could be causing the DI cart to be exausted so
quickly?

--
billy

Posted by kim gross on September 18, 2005, 10:28 pm

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Billy wrote:

> I have a 100gpd RODI unit (purchased from Marc) and less than 2
> months ago I replaced the cartridges. The previous set lasted nearly
> six months, and my usage has not increased very much in that time.
> However, the DI unit is already fully discolored, indicating
> exaustion. What could be causing the DI cart to be exausted so
> quickly?
>

It has to be one of two things. Either your membrane is bad allowing a
lot more bad stuff through, or your source water is much worse causing
more bad stuff to go through. The first thing I would suggest you do is
make sure all of the filters are correctly seated (including the
membrane if you opened it up. Then check the alk of the water going
into the unit, and the alk of the water coming out of the membrane. The
water on the outlet should be much much lower than the water going in,
if it is not your membrane is not working correctly.

Kim

Posted by Pszemol on September 20, 2005, 2:53 pm

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Have you solved your problem ?
I am very interested what was the reason...
What has Marc told to you ?

Posted by Billy on September 21, 2005, 12:40 am

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>> I have a 100gpd RODI unit (purchased from Marc) and less than 2
>> months ago I replaced the cartridges. The previous set lasted
>> nearly six months, and my usage has not increased very much in
>> that time. However, the DI unit is already fully discolored,
>> indicating exaustion. What could be causing the DI cart to be
>> exausted so quickly?

>
> Have you solved your problem ?
> I am very interested what was the reason...
> What has Marc told to you ?

I haven't bugged Marc yet. I've been working some heavy hours, and
haven't had time to examine Kim's suggestion yet.

b

Posted by Pszemol on September 23, 2005, 1:20 pm

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>>> I have a 100gpd RODI unit (purchased from Marc) and less than 2
>>> months ago I replaced the cartridges. The previous set lasted
>>> nearly six months, and my usage has not increased very much in
>>> that time. However, the DI unit is already fully discolored,
>>> indicating exaustion. What could be causing the DI cart to be
>>> exausted so quickly?

>>
>> Have you solved your problem ?
>> I am very interested what was the reason...
>> What has Marc told to you ?

>
> I haven't bugged Marc yet. I've been working some heavy hours, and
> haven't had time to examine Kim's suggestion yet.

Have you figured it yet ? Just curious...

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