Homemade Ultralight Backpacking Water Filter

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This is a photo essay of the homemade ultralight backpacking water filter I use.

Use What You Need

Don’t waste your breath telling me this filter isn’t enough for me – or anyone else choosing to use it – and we won’t tell you your over compensating for water filtration.

It’s a free country so leave everyone to use the filter of their choice.

I’m not a water expert so only take my advice if you’re confident it will serve your needs.

Step 1

Get a 1 Micron Singed Polyester 7″ x 16″ Filter Bag Felt Biodiesel Sock Size 1, open the sock into a  flat piece of cloth, draw as many 8″ circles as you can (we fit four 8″ and one 7″), and cut them out.

Step 2

Fold them into quarters and glue the seam (I use a hot glue gun).

Backpacking Filter 2

Step 3

Create a protective sleeve to store your filter.

These biodiesel socks will catch a lot of dirt and natural material when you lay them on the ground. To combat this I sewed fiberglass screen material to fit over the filter as protection.

Backpacking Filter 3

You don’t have to make this cover, but it helps keep the outside of your filter clean.

Step 4

Put it all together and give a few to your cheapskate, ultralight backpacking friends!

Backpacking Filter 4


Save Money

Effective water filtration at a fraction of the price.

What are your money saving tips for ultralight backpacking?



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