Help Required with Water Calculator

(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!
Post Reply
User avatar
barneey
Telling imaginary friend stories
Posts: 5423
Joined: Mon Jul 25, 2011 10:42 pm
Location: East Kent

Help Required with Water Calculator

Post by barneey » Thu Sep 22, 2011 7:08 pm

I live in an extremely hardwater area.

The figures I have from the Southern Water web site are as follows:
CaC03 = 311
Camg/l = 124.4
Clark 21.77
French 31.10
German 17.42

The salifert kit gives me a reading of 268 CaC03 so there must have been a lot of rain recently or something.

Using the calculator on this site jims do I need to contact Southern Water for a full report to use the calculator? As I don’t have a lot of the readings it is asking for.

BTW I normally only use CRS to reduce carbonate to achieve the level of brew required is this enough?
brupak

If anyone can help please.

Cheers Clive
Last edited by barneey on Sun Sep 25, 2011 8:25 am, edited 1 time in total.
Hair of the dog, bacon, butty.
Hops, cider pips & hello.

Name the Movie + song :)

fisherman

Re: Help Required with Water Calculator

Post by fisherman » Fri Sep 23, 2011 10:55 pm

Clive,
If you have your alkilinity reading go to Brupacks site if you have a alk of 311 to bring your alk down to say 35 for bitter you need to add 35 ml of CRS for 23 litres of liquor thats 1.5 ml per litre. If you look at the brupacks chart for DLS ( salts to add to the mash tun and boil ) you should work it out for DLS additions . It's late if you have a problem with the DLS e-mail me.

fisherman

Re: Help Required with Water Calculator

Post by fisherman » Fri Sep 23, 2011 10:57 pm

CRS for 268 is 1.29 per litre. Look at DLS :D

User avatar
barneey
Telling imaginary friend stories
Posts: 5423
Joined: Mon Jul 25, 2011 10:42 pm
Location: East Kent

Re: Help Required with Water Calculator

Post by barneey » Fri Sep 23, 2011 11:24 pm

Many thanks for your reply, If I may, I will email you tomorrow with my calculations and what I intended to try with the water treatment.

Best Regards

Clive
Hair of the dog, bacon, butty.
Hops, cider pips & hello.

Name the Movie + song :)

greenxpaddy

Re: Help Required with Water Calculator

Post by greenxpaddy » Sat Sep 24, 2011 12:39 pm

http://www.southernwater.co.uk/homeAndL ... /ZK518.pdf

This is the Ramsgate report. you can get the report for your area by putting in your postcode

Ignore that- it only seems to list nasties not the goodies

User avatar
barneey
Telling imaginary friend stories
Posts: 5423
Joined: Mon Jul 25, 2011 10:42 pm
Location: East Kent

Re: Help Required with Water Calculator

Post by barneey » Sat Sep 24, 2011 7:30 pm

fisherman wrote:Clive,
If you have your alkilinity reading go to Brupacks site if you have a alk of 311 to bring your alk down to say 35 for bitter you need to add 35 ml of CRS for 23 litres of liquor thats 1.5 ml per litre. If you look at the brupacks chart for DLS ( salts to add to the mash tun and boil ) you should work it out for DLS additions . It's late if you have a problem with the DLS e-mail me.
Hi Fisherman

Well my calculations are based on liquor volumes form Alemans Batch Sparge calculator

30.6 Litres of wort is required for the boil
Collect two equal volumes of 15.3 Litres of wort from the mash tun
A total volume of 21.3 Litres of liquor is required for the first batch
Comprising of 10 Litres used in the mash
and 11.3 Litres to top up with
15.3 Litres of liquor is used for the second batch

A mash tun of AT LEAST 25.5 Litres will be required
The total qty of water required is 36.6 Litres, handy for water treatment


I am brewing a pale ale and the total alkalinity of the water (taken from the web site is) as CaC03 is 311 p.p.m. In order to bring it within the target range of 30-50 p.p.m. (for pale ale) I will need to reduce the alkalinity by 261- 281 p.p.m. From the following table I have calculated that the amount of CRS to be added is approx 1.5 per litre so if using 36.6 litres its 36.6 x 1.5 = 54.9ML (the 1.5 agrees with your figure)
CRS Alkalinity
0.35 -64
0.52 -96
0.7 -128
0.87 -160
1.05 -192
1.22 -224
1.4 -256
1.57 -288
1.75 -320

For the calcium content. I have used Original alkalinity in ppm = 311 x 0.4 = Calcium in ppm = 124.4ppm

A typical Pale Ale requires a calcium content of 180-220 p.p.m. As I already have 124.4 p.p.m. I will need an extra 55.6 to 95.6 p.p.m. From the table below I have calculated the amount of DLS required is 0.40 of DLS per litre, so if was using 30ltrs x 0.4 = 12 grams

DLS in grams per litre

DLS Calcium
0.1 16
0.2 31
0.3 47
0.4 63
0.5 94
0.6 109
0.7 125
0.8 141
0.9 156
1 172
1.1 188

When making a full mash brew, DLS should be added in two stages:

Stage 1. Weigh sufficient DLS to treat your mashing liquor ***** What is the calculation ***** added to the grain
Stage 2. Weigh sufficient DLS to treat the balance of the total brewing liquor ***** What is the calculation *****

Also I am sure i read on here somewhere about CRS adding Chloine to the liquor should I use anything to over come this?

Many Thanks for the help

Clive
Hair of the dog, bacon, butty.
Hops, cider pips & hello.

Name the Movie + song :)

Post Reply