All this said, if you are trying to remove water from Denatured alcohol, say with ethanol drying zeolite like ProofUp Beads, I would use a slightly excessive amount of zeolite to account for calculation errors. A hydrometer will get you close enough to guesstimate, and then dial in the difference based on temp/usage.
ProofUp Beads hold 20% of their dry weight in water. So you are seeking an over all weight increase of 20%. If weight does not go up the full 20% then you may have more zeolite than required.
At least thats my ham fisted way of suggesting a process flow drawn in crayon.