Looking to brew a German style helles.

[EoinMag]

I have all the ingredients, I have the large starter made, I have my CRS and DLS and have tested my water.

Now the problem I have is not knowing exactly how to tie in the results of my water tests to the usage of the aforementioned chemicals to get my water to the ideal water chemistry that I need.

I am on the Dublin water supply and recently made a cracking stout, so I know I need to treat it to get anywhere with such a light beer.

I am confused about GH/KH/Ca versus total alkilinity.

My results were

Ca mg/l 100
GH as CaCO3 mg/l 220
KH as CaCO3 mg/l 190

Can anyone help me with this, despite all the reading I've not been able to suss this.

[WallyBrew]

.........
I am confused about GH/KH/Ca versus total alkilinity.

My results were

Ca mg/l 100
GH as CaCO3 mg/l 220
KH as CaCO3 mg/l 190

Can anyone help me with this, despite all the reading I've not been able to suss this.

KH stands for Karbonate Hardness and the result from this is the one you want as it is equal to the total alkalinity

GH stands for General Hardness and should be the sum of calcium and magnesium expressed as calcium carbonate. This figure DOES NOT relate to the total alkalinity and may be disregarded.

Ca stands for calcium and it's useful to know this figure. It also has no direct relationship with total alkalinity. If this figure is from the same sample as the GH figure then one or other figure is wrong as 100mg/L of Ca would give 250mg/L of GH

[EoinMag]

.........
I am confused about GH/KH/Ca versus total alkilinity.

My results were

Ca mg/l 100
GH as CaCO3 mg/l 220
KH as CaCO3 mg/l 190

Can anyone help me with this, despite all the reading I've not been able to suss this.

KH stands for Karbonate Hardness and the result from this is the one you want as it is equal to the total alkalinity

GH stands for General Hardness and should be the sum of calcium and magnesium expressed as calcium carbonate. This figure DOES NOT relate to the total alkalinity and may be disregarded.

Ca stands for calcium and it's useful to know this figure. It also has no direct relationship with total alkalinity. If this figure is from the same sample as the GH figure then one or other figure is wrong as 100mg/L of Ca would give 250mg/L of GH

Hmmm so either I miscounted or that 30mg variation is a result of the margin of error for the home kits?

<edit> thanks a lot for the reponse by the way

[EoinMag]

I did this tonight, I'll post the whole thing again. Thanks a million Wallybrew, came out a treat.