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Old 04-17-2012, 09:06 PM   #1
WesP
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I decided to run a report on my water and i'm having trouble understanding exactly *what* my filter actually does here. The filtered report actually looks worse. I'm using a whole house sediment and carbon filter to do the filtering.

Tap Water:

pH 8.1
Total Dissolved Solids (TDS) Est, ppm 269
Electrical Conductivity, mmho/cm 0.45
Cations / Anions, me/L 4.5 / 4.1
ppm
Sodium, Na 47
Potassium, K 2
Calcium, Ca 29
Magnesium, Mg 11
Total Hardness, CaCO3 118
Nitrate, NO3-N 0.5 (SAFE)
Sulfate, SO4-S 17
Chloride, Cl 51
Carbonate, CO3 3
Bicarbonate, HCO3 91
Total Alkalinity, CaCO3 79
Total Phosphorus, P 0.45
Total Iron, Fe < 0.01
"<" - Not Detected / Below Detection Limit

Filtered Tap Water:

pH 7.9
Total Dissolved Solids (TDS) Est, ppm 383
Electrical Conductivity, mmho/cm 0.64
Cations / Anions, me/L 6.4 / 6.4
ppm
Sodium, Na 65
Potassium, K 3
Calcium, Ca 42
Magnesium, Mg 17
Total Hardness, CaCO3 176
Nitrate, NO3-N 1.4 (SAFE)
Sulfate, SO4-S 40
Chloride, Cl 70
Carbonate, CO3 < 1
Bicarbonate, HCO3 106
Total Alkalinity, CaCO3 87
Total Phosphorus, P 0.67
Total Iron, Fe < 0.01
"<" - Not Detected / Below Detection Limit

Can anyone help my understand what a carbon filter does to the water beside making it taste fantastic Do I need to attach another water filter to the setup to filter out anything else?

 
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Old 04-17-2012, 09:10 PM   #2
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If you are on a public supply the carbon will help to remove the chlorine.
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Old 04-17-2012, 09:13 PM   #3
WesP
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Wouldn't that be Chloride? Then why did it go higher after being filtered?

 
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Old 04-17-2012, 09:18 PM   #4
DrummerBoySeth
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Is there any possibility AT ALL that you had the samples labled backwards? It looks as if almost EVERY contaminant/mineral was HIGHER in the "filtered" sample. If I had to look at those reports, I would guess that somehow the labels got switched, or you accidentially filled the wrong containers when testing. If you simply re-label the results with the opposite name, then it makes MUCH more sense to me.
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Old 04-17-2012, 09:19 PM   #5
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It looks like those two sets of data are backwards. How would a filter add calcium?
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Old 04-17-2012, 09:25 PM   #6
WesP
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The non-filtered report was done a month before the filtered report. I'm leaning towards accidentally filling up with the same water or getting the filtered water contaminated some how.

I'm going to have to send in another water sample it looks like.

What should I expect to see drop with a 5 micron sediment filter and a carbon filter (KX Matrikx +Pb1) ?

 
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Old 04-17-2012, 10:22 PM   #7
ajdelange
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A carbon filter doesn't do anything to the mineral content of the water. It removes organics (such as the geosmines that make water taste musty) and chloramine but choride, sulfate, calcium.... it doesn't touch.

 
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Old 04-17-2012, 10:38 PM   #8
WesP
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If you wanted to reduce mineral content, would you have to use something like Reverse Osmosis and add mineral content back?

 
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Old 04-17-2012, 10:41 PM   #9
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Quote:
Originally Posted by WesP View Post
If you wanted to reduce mineral content, would you have to use something like Reverse Osmosis and add mineral content back?
Either that or cut your current water with RO water. Half RO, half tap will cut everything by half.
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Old 04-17-2012, 11:25 PM   #10
ReverseApacheMaster
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If these are done at different times and you're positive results aren't switched then you have some very noticeable swings in mineral content in your supply. Thinking about the differences between those two months, was there a lot of precipitation before or in between the months? Precipitation around the water supply for your area? A long dry period?

 
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