Winchester water analysis

(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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HantsGaz

Winchester water analysis

Post by HantsGaz » Sat Jul 18, 2009 3:51 pm

Hi All,

Doe anyone have any details on what the analysis of water is in Winchester (Southern Water)? Looking at their website - these are the details listed for CaCO3, but it's harndess not alkalinity:

CaCO3: 282
Ca: 112.8 mg/l

The example water reports, available on the site, are dated 2007 and don't have the key minerals listed that we're intersted in!

Thanks, Gaz.

HantsGaz

Re: Winchester water analysis

Post by HantsGaz » Sun Jul 19, 2009 1:40 pm

Hi Chris,

This is what the system comes back with when I enter my post code:

Zone H521, Easton supply point.

Is that good enough - thanks also for seeing what you can find out?

Rgds, Gaz.

HantsGaz

Re: Winchester water analysis

Post by HantsGaz » Wed Aug 05, 2009 4:46 pm

In the meantime I have sent my tap water to Murphy's. Here's what the preliminary analysis (official report to come) has come back with:

PH – 8.23
Alkalinity – 232
Carbonates – 139
Chloride – 22
Temporary Hardness – 148
Calcium Hardness – 136
Calcium: ~98 mg/l (EDIT: Original figure was 54.4 but is most likely incorrect)
Magnesium Hardness – 12
Magnesium - 2.88

Looking at the latest Southern Water report for my supply point, the Sulphate mean is 11ppm and Sodium 8.2ppm.

Just got to try and find a way of buying the DWB and AMS cheaply. I already have CRS, but the mark up Brupaks put on Murphy's water treatments is very high when you compare that to the price per kilo and litre that Murphy's sell it for. Albeit you have to buy it at 25 kg and 25 L and then postage on top of that. Might have to talk to a local brew pub to see if I can buy in small amounts from them....

Rgds, Gaz.
Last edited by HantsGaz on Sat Apr 10, 2010 4:35 pm, edited 1 time in total.

Drafty

Re: Winchester water analysis

Post by Drafty » Fri Apr 09, 2010 12:00 pm

Picking up on this old post... I'm also in Winchester, from the same supply point. I'd like to give CRS a try, to save the time spent treating water the day before a brew. I tried plugging in the values above into Graham's water calculator, and for a Bitter is suggested about 45ml CRS & 12g Gypsum; for general purpose is said 45ml CRS & 6g Gypsum.

Do those values seem correct? I'm not 100% sure I'm using the calculator correctly.

Edit: I should have said, I'm aiming to treat 40l of water...

Thanks in advance!

Matt

HantsGaz

Re: Winchester water analysis

Post by HantsGaz » Sat Apr 10, 2010 1:09 pm

Drafty,

I need to edit this post as the Ca is incorrect. See this thread:

viewtopic.php?f=9&t=6494&start=45

Rgds, Gaz.

Drafty

Re: Winchester water analysis

Post by Drafty » Sat Apr 10, 2010 3:05 pm

Thanks for the pointer, with the numbers you posted there I'd looking at 45ml CRS, 10g Gypsum and a pinch of epsom salts for 40l. I'll give it a try next time I need to order some ingredients...

Matt

HantsGaz

Re: Winchester water analysis

Post by HantsGaz » Sat Apr 10, 2010 4:41 pm

Matt,

I would also use half a crushed Campden tablet in each 25lts of water too. What are you making?

Rgds, Gaz.

Drafty

Re: Winchester water analysis

Post by Drafty » Mon Apr 12, 2010 10:19 am

Hi Gaz,

I've mostly been brewing Black Sheep Best Bitter from GW's book (adapted with a little less pale malt as I seem to be getting higher efficiency that he planned for in the recipe, and I want a light session ale), but I sometimes do a wheat beer too (Ayinger Brau Weisse, from an older GW book). Both are simple recipes without too many different grains or hops. I've used SO4 for the bitter and Danstar Munich / WB-06 for the wheat.

Water treatment has been boiling, with 1 tbs Gypsum into each 4 Gal, and a tiny pinch of Epsom salts. Sometimes I've used the half campden tablet, sometimes not - I can't say I've noticed a difference, though I haven't done many side-to-side comparisons - the beer is usually gone before I get the next batch ready.

Very drinkable results to date, but through the winter fermentation took up to 3 weeks, even with a heater in the fermenter. I'm hoping now spring is here it'll pick up a bit, and if it doesn't then I might try and get some 'real' yeast from the Flower Pots people in Cheriton.... right now the WB-06 I pitched yesterday is fermenting rapidly so I'll see how it goes.

Matt

HantsGaz

Re: Winchester water analysis

Post by HantsGaz » Tue Apr 13, 2010 12:01 am

Hi Matt,

Good idea about using the Flowerpots folks, it would be advantageous to be able to by fresh hops from them too! If you don't want to 'mess round' with individual mineral salt editions - you could always try Brupaks DLS (Murphy's DWB). There's a useful spreadsheet on Craftbrewing site that shows what levels of CRS & DLS to use per the beer type you are making. I used this in my last brew and it worked great. If you want to try some next time, PM me - as i have plenty!

Have a read of this too CBA Factsheet #1 - Water Treatment (tells you where to get the spreadsheet as well).

Rgds, Gaz.

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