Water Profile Midleton

[johnrm]

This should be useful to any all grain brewers...
There are 2 water supplies in Midleton.
The north side, Broomfield, has very soft water. About 20mg/l General hardness, 45mg/l KH/Carbonate Hardness/alkalinity.
The south side, Castleredmond, Ballinacurra has hard water, not sure GH, but 230mg/l KH/carbonate hardness/alkalinity.
I'm trying to get a full breakdown, when I have this I will post it.

[Shamek.pl]

So I have to take Your water for ales and You mine for stouts

[derfel]

so from now on we're swapping water at the meetups?

[johnrm]

More of less Shamek, once you know the water profile you can treat your water.

@Brian, probably not, I prefer to swap beer!

The results I have above are from GH and KH aquarium titration test kits.
The KH is accurate - the GH less so, but good as an indicator.

I have been speaking to the EPA about water analysis.
They said that water.ie are obliged to give water analysis to customers.
I have a call in with water.ie for this, the only thing is that this will be a point in time, and that might be from some time ago.

Next stop, Sample to Murphys in the UK, sample goes today.

[mr hoppy]

Did you work out your calcium content johnrm?

< 50 ppm is not so great for the mash.

[johnrm]

Nope, but our friends across the water will tell me this.

[Shamek.pl]

Just checked my tap water (Castle Redmond ) with using aquarium tests and:
pH - around 7,3
GH - 11 in german degree (195,8 ppm CaCO3 )
KH - 8 in german degree  ( 174,4 mg/l )

But this is only aquarium tests , could be wrong

[johnrm]

I have a reading from when I was living in Castleredmond.
May 2013 - unboiled 205mg/l boiled 56mg/l
Test a cooled boiled sample and see how that comes out - now you can make great pale beers too!

Porter/Stout should be in the range 100-150mg/l
Say you're aiming for 125mg/l - Boil 1/3 your liquor then blend it.

Trial this on small volume to start, then multiply this to your full liquor volume.

[Shamek.pl]

Boiled water results

GH - 5 in german degree (89 ppm CaCO3 )
KH - 3 in german degree  ( 65,4 mg/l )

Much better , will try go this way for the  next ALE  ( AIPA I presume )

[mr hoppy]

That looks like pretty good brewing water.

[johnrm]

+1
Remember when using the boiled water to leave the precipitate behind.

[raindogxx]

Does anyone have data from the same location at multiple sampling times? I'm wondering how much variability there is due to weather or seasonal changes. I could see it being significant.

[johnrm]

Yes, this is a consideration.
I lived in a place where the water profile changed significantly from time to time as the supply alternated between ground source and lake, or a blend of the two.
Seasonality would be another cause for a change in profile.
Any analysis result is going to be at a point in time, so to be used as a guide, more results over time would allow you to interpolate.

[mr hoppy]

I've taken measurements in Cork city a few times and they've been consistent.

[wallacebiy]

Cork city is pretty much geared for brewing though the breweries here have always had a close relationship with the council .