I am sure this has been addressed many times, looking for a short answer:
I am getting ready to do my first all grain brew. My water is from my well, and it is softened.
I have ran some tests on it in my lab. Al, Cu, Pb, Sn, Ag, Zn, Ca, Mg, Si, P, B, and K are zero. Na is at 19 ppm. TDS = 355. Specific Conductance is 670.
My main concern is that my pH is 7.8. I think I need a pH of around 5.4 for mashing, and I plan to only mash grains for simple, basic recipes (simple ales, lagers, to start with) until I get a grip on all-grain.
What do I need to do , if anything, to treat my strike and sparge water (plan on batch sparging)?
My Sodium is only 19 ppm, relatively small, I think. Most elements are zero, and no sulfates or Chloride. Hardness should be reduced (actual amounts not tested for in my labs).
I have made several extract brews with grains, so my main concern is hitting the pH when I do all grain mashing, sounds like that may not be a concern?
Your water pH is not really a concern… your mash pH is a concern.
What is making your water alkaline? It would really help if you gave numbers for those other minerals.
Do you have a water softener… or an RO filter? Generally, water is “Softened” with some sort of ion exchange. Often sodium. If you sodium is 19, is there something else that is really high??
Can you post the unsoftened water mineral content? That would help.
Softening reduces Ca and Mg, and adds Na (usually for salt). You want Ca And Mg to a certain extent. The amount of bicarbonate in the water is very important, as that is what will controll mash pH to a large extent, as that will buffer the pH.
Something does seem amiss. Although a TDS or conductance reading is an inexact measure with respect to ionic content, the 19 ppm Na seems several times too low with respect to the TDS reading. In addition, the water report information is missing the anions and most importantly, the alkalinity. Nothing can be deduced from this report.