How much water do we add to our Irish res ale?

We re making Irish red ale with a crafting series. It should take around 3 hours. We re wondering how much water we need to put in after we put in the yeast (which we ve already done. We have 23 L with brew now , but the package doesn t say how much water er have to add in after adding the yeast. Anyone have any... show more We re making Irish red ale with a crafting series. It should take around 3 hours. We re wondering how much water we need to put in after we put in the yeast (which we ve already done. We have 23 L with brew now , but the package doesn t say how much water er have to add in after adding the yeast.
Anyone have any ideas?
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