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Old 07-12-2009, 02:36 PM   #1
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Default How do I lower the Magnesium Levels?

Had my well water tested and it looks like the worst water ever! My Magnesium level is 112. I also got a copy of the local city water and that Magnesium level is at 61 which is still high according to the reading I have done. How do I lower the Magnesium level?

Here are the pertinent levels of my well water;

Calcium 272
Magnesium 112
Bicarbonate 360
Sulfate 48
Sodium 11
Chloride 2.0
Hardness 384
PH 7.51


You can see my Calcium level is off the chart also. Is there any way I can use this sludge to brew?



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Old 07-12-2009, 03:46 PM   #2
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I am no expert, but perhaps you could cut it with Distilled. 1 to 1.

David



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Old 07-12-2009, 03:53 PM   #3
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The only practical way (at home) to reduce minerals is reverse osmosis.

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Old 07-12-2009, 04:41 PM   #4
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+1 on RO ... All my beers are done with RO and a small amount of minerals added back. Works great for me.

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Old 07-12-2009, 05:07 PM   #5
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I have a Water Softener in my house for all but the hose bibs. The hose bib is where I got the sample, so that I would not have the salt in the test.
Would it be best for me to install a RO system in my water supply before the Softener and the un-softened line? Giving me RO water to all incoming water?

I know nothing about RO. Wouldn't even worry about it but it's all about the beer. But couldn't hurt to clean up my house water anyway.

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Old 07-12-2009, 05:10 PM   #6
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A whole house RO system is extremely expensive and likely impractical. Get an under-sink model and either use it solely for brewing or install it in the kitchen and use it for your brewing needs.

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Old 07-13-2009, 10:43 PM   #7
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And don't use water run through a softener.

+1 for an undersink (or small scale) RO/DI unit. For under $100 you could have on that produces many gallons per day.

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Old 07-19-2009, 02:05 PM   #8
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Can you tell me what a RO system will do to my water? Will I need to have the RO water tested again to find out what needs to be added after RO? Are there different type and sizes RO Systems? I'd likely make it a part of my brewery and add it to the Brutus build. Maybe also put one in the kitchen to clean that up for drinking and cooking water.

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Old 07-19-2009, 03:41 PM   #9
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There are many types and sizes of RO units.

RO water is relatively pure. Not distilled, but you can assume there will only be traces of whatever is left.

Less expensive RO units are not for 'realtime' usage. The one I had in Las Vegas was good for about 20 gallons a day. Looks like you can get a 3-stage 50 GPD system for ~$250. I paid much more for less, but that was 19 years ago.

If I was planning to put one in today, I'd get something about that size and add a second storage tank that was big enough to make 10 gallon batches of homebrew without waiting.

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Old 07-19-2009, 05:34 PM   #10
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Thanks David, That helps. Sounds like a RO system will be more of a permanent fixture type system than I first thought. I envisioned something along the filter line where water flows through as needed.

This will take more thought than first anticipated.



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