Molecular Sieve Zeolite 3A 4X8 Mesh 400g

Sieves do what I needed them to do, remove water from my chemical solvents. However, they are also polluted by extremely fine powder and random bits of debris that are not shards of the sieves. I have tried vacuum filtration of the solvent with fine filters, multiple filters, activated carbon filters, and nothing gets this dust out of my 2-propanol. Acetone seems to have a density that allows the dust to totally settle at the bottom of the container over time, but for whatever reason, this dust has not settled in my 2-propanol container since I filled it with these sieves 2 days ago.