2017-07-02

Non-synthetic waterbottle: Gaskets

I recently posted a review of the "BOT" bottle/pot http://www.blog.smalladventures.net/2017/06/review-vargo-titanium-bot-bottlepot.html. I liked it a lot, but it had a very significant flaw for my use. The gasket is made if silicone, which doesn't quite fit with the "no synthetics" idea for my gear. So, I decided to try replacing it.

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The ring shown here is the original Silicone gasket. On my first try I cut a leather gasket about the size of the top out of some vegtan leather I had in the truck. It immediatly stretched out to the point of uselessness, inches longer than needed.

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Next I tried using some waxed chord. I first leg-rolled a 2-ply twine from waxed linen. Then I twisted this around itself into a 3-ply (total of 6-ply) closed ring of chordage. This leaked like crazy, it might work if I dipped it in additional wax, but as is it's just too lumpy.

Okay, back to the leather, I tried cutting something quite a bit smaller probably ~1/2" smaller in radius. Then I soaked it in water and stretched it until I could just barely pop it on to the lid.

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This worked okay at first, but as I've used it it's shaped better to the bottle and worked better and better. The biggest problem is that this bottle is already a little bit difficult to open, and the leather seems to have a higher frictional co-efficient than the silicone did, making the BOT sometimes quite difficult to open. If I'm careful though about how tight I screw it on it seems to be quite usable, and this method would work great for smaller lids. Due to this difficulty though I'm thinking that for thru-hiking I'd rather pick up a dedicated bottle as my second water-container, as that one gets opened and closed many many times a day, and a smaller lid would be easier.

Overall I'm very excited to finally have my first functional water container with no synthetics in it. One more step!

1 comment:

  1. CORD. CORDAGE.

    "Chord" isn't the right word.

    ReplyDelete