Purify Muddy Water in a Pouch: HydroPack

This looks really interesting:  Purifying dirty water and drinking it from a pouch, like a Capri Sun.

Check out this Daily Prep Episode, Turn Muddy Water into a Sports Drink

They are not cheap, but they are small and portable.  They can be purchased by the bucket.  The Amazon product description shows:

•   Forward osmosis filter requires no pumping, works in any virtually and water, even muddy water. Produces a sports drink for improved hydration.

It's worth a look!