Yes. Periodically adding a little Vaseline to the tracks will keep them supple and easy to close. Wipe away any excess Vaseline. In the field, a little lip balm or water can do the trick. When closing the zipper, make sure to firmly pinch along its full length to properly seal it.
The zipper tracks on my Platypus reservoir are hard to close. Can I make it easier?
Yes. Periodically adding a little Vaseline to the tracks will keep them supple and easy to close. Wipe away any excess Vaseline. In the field, a little lip balm or water can do the trick. When closing the zipper, make sure to firmly pinch along its full length to properly seal it.