Severn trent Hardness

(That's water to the rest of us!) Beer is about 95% water, so if you want to discuss water treatment, filtering etc this is the place to do it!
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MARMITE

Severn trent Hardness

Post by MARMITE » Sat Sep 04, 2010 9:31 am

I notice Severn trent are now giving a value for hardness as CaCo3 on their website.Am I right in thinking that if I take 60% of this figure it gives the alkalinity.I've arrived at this percentage by using ionic masses for calcium of 40.078 and carbonate of 60.007.These total 100 as near as damn it(that's a scientific expression) .It's not too far out from deducting the anions from the cations and also from the results of Daab's test kit.Just making sure I fully understand the theory.

MARMITE

Re: Severn trent Hardness

Post by MARMITE » Sat Sep 04, 2010 4:24 pm

Thanks Chris
I'm using your test kit for an accurate result but we have a MCBA meeting on Saturday and will be discussing certain aspects of water treatment . I wondered if the hardness figure would give a reasonable guide and I suppose I like all my figures to tie up.

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