Dilution and blending
How much water to add to bring an over-strength wort down to the gravity you actually wanted.
Water to add
4.00 L
Final volume
24.00 L
Model used
Conservation of gravity points. If another calculator gives you a different answer, this is usually why. Neither is wrong; they are different published models of the same process, and the useful thing is knowing which one produced the number in front of you.
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