Hi Guys
When comparing these two methods for my own water supply, the recommended addition of salts for a bitter from GW's is around 10 or 11 grams of gypsum and very little of anything else. If I use Brupaks DLS calculation, the total is something like 21 grams.
Anyone got any thoughts on the apparent disparity?
Graham's Water Treatment Calculator vs Brupaks Guide
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Graham's Water Treatment Calculator vs Brupaks Guide
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Re: Graham's Water Treatment Calculator vs Brupaks Guide
Different authors have different concepts regarding water treatment.
Re: Graham's Water Treatment Calculator vs Brupaks Guide
OP is not comparing like with like (gypsum vs dls which is gypsum/calcium chloride plus ?). Murphy's product data sheets say gypsum adds Calcium:Sulphate @ 20:48, whereas DLS adds Calcium:Chloride:Sulphate @ 31:31:64.Aleman wrote:Different authors have different concepts regarding water treatment.
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Re: Graham's Water Treatment Calculator vs Brupaks Guide
Those Calcium:Sulphate ratios aren't a million miles from each other, but if the figures are correct, the recommended quantity of DLS of around 21 grams adds massive amounts more than GW's recommended addition of around 10 grams gypsum.vacant wrote:OP is not comparing like with like (gypsum vs dls which is gypsum/calcium chloride plus ?). Murphy's product data sheets say gypsum adds Calcium:Sulphate @ 20:48, whereas DLS adds Calcium:Chloride:Sulphate @ 31:31:64.Aleman wrote:Different authors have different concepts regarding water treatment.
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Re: Graham's Water Treatment Calculator vs Brupaks Guide
I still can't get my round this. Maybe Graham would care to comment.Dave S wrote:Those Calcium:Sulphate ratios aren't a million miles from each other, but if the figures are correct, the recommended quantity of DLS of around 21 grams adds massive amounts more than GW's recommended addition of around 10 grams gypsum.vacant wrote:OP is not comparing like with like (gypsum vs dls which is gypsum/calcium chloride plus ?). Murphy's product data sheets say gypsum adds Calcium:Sulphate @ 20:48, whereas DLS adds Calcium:Chloride:Sulphate @ 31:31:64.Aleman wrote:Different authors have different concepts regarding water treatment.
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Re: Graham's Water Treatment Calculator vs Brupaks Guide
Hopefully he will, but it's worth remembering that the recommended amounts of salts for particular styles of beer are matters of opinion anyway, and usually a range to aim for is given rather than any kind of exact calculated figure.Dave S wrote:.........I still can't get my round this. Maybe Graham would care to comment.
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Re: Graham's Water Treatment Calculator vs Brupaks Guide
Yes, I see that Jim. It's just that there seems to be such a difference in quantities. But as I think you're saying, using either might be OK.Jim wrote:Hopefully he will, but it's worth remembering that the recommended amounts of salts for particular styles of beer are matters of opinion anyway, and usually a range to aim for is given rather than any kind of exact calculated figure.Dave S wrote:.........I still can't get my round this. Maybe Graham would care to comment.
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Dave
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