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Old 12-05-2013, 01:54 PM   #1
Mar 2011
Muncie, Indiana
Posts: 135
Liked 3 Times on 3 Posts

So I sent my tap water into Ward Labs and here is what I got back

pH 7.0
Total Dissolved Solids (TDS) Est, ppm 432
Electrical Conductivity, mmho/cm 0.72
Cations / Anions, me/L 7.7 / 8.1
Sodium, Na 14
Potassium, K 3
Calcium, Ca 90
Magnesium, Mg 30
Total Hardness, CaCO3 350
Nitrate, NO3-N 2.7 (SAFE)
Sulfate, SO4-S 17
Chloride, Cl 51
Carbonate, CO3 < 1
Bicarbonate, HCO3 327
Total Alkalinity, CaCO3 268
"<" - Not Detected / Below Detection Limit

I am going to do my 1st all grain batch next week. I was curious how Good or bad this water is and how much treatment I will need to do to get a correct PH for my beers.

Thanks on any info that you can give or anything you can let me know to point me in the right direction to help use this knowledge about my water to make better beer.

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Old 12-05-2013, 08:52 PM   #2
thadass's Avatar
Dec 2012
Everett, WA
Posts: 401
Liked 70 Times on 59 Posts

You may be better helped in the "Brew Science" subforum. That is where most water chem discussions take place.

I suggest downloading and using the Bru'n Water calculator. It takes some learning to be familiarized with it but once you are, entering a recipe and tweaking your potential water additions becomes quite easy.

Without worrying about water chemistry additions, you can still enter in your base profile and recipe to see where the estimated PH might be.
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Old 12-05-2013, 08:56 PM   #3
Dec 2011
Culpeper, VA
Posts: 2,640
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It tells me that you have very hard water with high alkalinity. The high alkalinity may make it hard to maintain low pH during sparge. Definitely check out the Bru'n Water speadsheet.
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Old 12-05-2013, 10:27 PM   #4
mabrungard's Avatar
Feb 2011
Carmel, IN
Posts: 4,312
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The magnesium is getting on up there and the alkalinity is definitely going to need to be neutralized. However, this is a workable brewing water. Just be aware that you might not have great results when brewing lightly flavored beers like Pils and wheat beers. The water may impart more flavor than desired in those light styles. Then you may want to dilute a bit.
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Old 12-06-2013, 03:31 PM   #5
Mar 2011
Muncie, Indiana
Posts: 135
Liked 3 Times on 3 Posts

Thanks for the advice so far.

What is the best way to reduce alkalinity?

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Old 12-06-2013, 03:46 PM   #6
Mar 2013
Posts: 289
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Originally Posted by Zrab11
Thanks for the advice so far.

What is the best way to reduce alkalinity?
Dilute it with distilled or reverse osmosis filtered water

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