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Old 03-17-2007, 08:22 PM   #11
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Are you sure about a carbon filter removeing phospahate, and reducing TDS? That is the first time I have heard of carbon doing either of those.
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Old 03-17-2007, 09:53 PM   #12
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Usually those systems are put on houses that have wells. Usually it is because the well water has something in it that is harmfull to humans. A friend of mine at work has a system like that for his whole house...cost him over $10K but if he didn't put it on the house they wouldn't be able to use the water that came from the well. If I were you I would do a bit of research on where your million dollar plus house is going to be built!!

Oh yeah...and FWIW...an entire house RO system is a General Hardware/Equipment Discussions topic.
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Old 03-18-2007, 12:16 PM   #13
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The water provider will be the same plant as the house I'm in now (I'm only moving a few miles). We do have a relatively high TDS reading - I researched the water quality prior to moving to a mini-reef. Nitrates and PO4 is fairly high, as are chloromines.
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Old 03-19-2007, 12:53 PM   #14
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Quote:
Originally Posted by Scoot
Confirmed - the "house" RO system only feeds 3 faucets.
Good thing, too....a good-quality system that would produce enough to feed all the household needs would have to produce at least 400-500 gpd, and would be painfully expensive and waste a ton of water.
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Old 06-11-2007, 10:05 AM   #15
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Quote:
Originally Posted by BillD
Are you sure about a carbon filter removeing phospahate, and reducing TDS? That is the first time I have heard of carbon doing either of those.
Yes, in fact - most carbon filters for homes are specifically to reduce chlorine/chloromine - any filtration will reduce TDS. I'm not sure specifically about phosphate.
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Old 06-11-2007, 04:10 PM   #16
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Quote:
Originally Posted by Scoot
Quote:
Originally Posted by BillD
Are you sure about a carbon filter removeing phospahate, and reducing TDS? That is the first time I have heard of carbon doing either of those.
Yes, in fact - most carbon filters for homes are specifically to reduce chlorine/chloromine - any filtration will reduce TDS. I'm not sure specifically about phosphate.
The carbon will remove chlorine, but many carbon "blocks" won't really remove chloramines. Just pointing out that "all" carbon filters won't take care of both. If it's an important thing for you, make sure you specifically ask the question of your filter supplier.

Filtration itself may not necessarily reduce TDS. It all depends on the level of filtration. For example, running 88ppm tap water through my three stage filtration unit gets me 83ppm at the outlet. I guess it IS reduced, but for all practical purposes it's not.

Also - carbon won't get rid of phosphates.
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Old 06-11-2007, 05:23 PM   #17
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I did - I talked to the guy installing the carbon filter, water softener, and RO systems. I'm still going to use my own RO/DI unit, so ANY filtering before that will extend the life of my DI resin and RO membranes.
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