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Home Brew Forums > Home Brewing Beer > Brew Science > Is this a useful waster report?
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Old 06-22-2013, 08:12 PM   #11
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Wow, when did ward labs get to be $40?
I paid $14 a while back, but I see that it's $26.50 for the same test now. More expensive, but not $40! You don't need the "brewer's test", you just need the "household mineral test" or something like that. It used to be called the WB06 test.
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Old 06-23-2013, 09:03 PM   #12
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It's $28.60 for the W-6 kit that includes the sample container and prepaid mailer, and $39.60 for the Beer Test kit that is everything in the W-6 plus total phosphorous. I believe phosphorous is a yeast nutrient, so I sprung for the total package.

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Old 06-23-2013, 09:56 PM   #13
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While phosphorus is a yeast nutrient, the malt adds something like 1% phosphorus to the wort. 1% is 10,000 ppm which would likely dwarf the contribution of phosphorus from the tap water. Tap water should typically have far less than 1 ppm phosphorus. The phosphorus test on the water is unnecessary.

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Old 06-24-2013, 01:11 PM   #14
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The phosphorus test on the water is unnecessary.
Dang, could have spent the extra eleven bucks on grain....
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Old 05-26-2014, 04:25 PM   #15
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Default Lets try this again....

OK.. The first report was from a friend that works at the water plant. I finally had a sample sent out to Ward Labs and the results are below. I am going to try and plug them into Bru N Water, and see if I can confuse myself.



pH 8.4

Total Dissolved Solids (TDS) Est, ppm 292

Electrical Conductivity, mmho/cm 0.49

Cations / Anions, me/L 3.7 / 4.5

ppm

Sodium, Na 58

Potassium, K 2

Calcium, Ca 10

Magnesium, Mg 7

Total Hardness, CaCO3 54

Nitrate, NO3-N 0.1 (SAFE)

Sulfate, SO4-S 13

Chloride, Cl 102

Carbonate, CO3 6

Bicarbonate, HCO3 36

Total Alkalinity, CaCO3 40

Total Phosphorus, P 0.28

Total Iron, Fe < 0.01

"<" - Not Detected / Below Detection Limit

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Old 05-26-2014, 05:13 PM   #16
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There are a couple of problems with this report. First, although they were supposed to have fixed it and you shouldn't have this error unless the report is more than 3 weeks old, your bicarbonate is, based on their alkalinity reading, really closer to 45 mg/L and your carbonate more like 0.6. Even fixing that the report isn't very well balanced - off by 0.8 mEq/L. I would seriously consider writing them and asking about this. What it means is that they made measurement errors totaling 0.8 mEq/L or neglected to measure something whose equivalence is 0.8 mEq/L or a combination. I'm not sure you should accept such a poor report.

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Old 05-26-2014, 05:16 PM   #17
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Dang, could have spent the extra eleven bucks on grain....
I'm kind of a nut on such things and use the phosphorous number to correct the alkalinity and so am delighted when people post reports with it but for most people it's not worth $11.
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Old 05-26-2014, 05:24 PM   #18
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AJ, I was wondering what was up. When I plugged it into Bru N Water it flagged me that it is out of balance.

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Old 05-26-2014, 06:59 PM   #19
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If you feed it alkalinity then it should pick up on the carbonate/bicarbonate problem but that is only 0.1 mEq/L. There is still lots of other imbalance in this report.

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Old 05-26-2014, 07:02 PM   #20
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I split the report with another guy in the neighborhood so we are going to fire off an email an see what they say. I will let you know what they say. I appreciate the help.


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