Sawyer Squeeze Gravity Filter Hack Using A Tornado Tube
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- Опубликовано: 8 фев 2025
- I found this hack on a Facebook group and have been using this for a few trips. This is a great way to have a quick gravity based filter system without spending the money for one. The tube weighs .5oz (13 grams) and cost me $4.50 on Amazon (search: tornado tube or cyclone tube).
I like that setup man, nice hack.
Nice video
If you don't want to buy a tornado tube, you can make a DIY one with two soda bottle caps. Just put a teflon coated or other non-stick pan on the stove medium heat, give the pan time to warm up (when water droplets dance across it's hot enough), place the bottle caps on the pan top down until the bottle cap tops start to melt (about 30 seconds). Pull them off the pan and align them up, then push the bottle caps together, welding the plastic caps top-to-top, dunk your new creation in cold water to harden the plastic and prevent further melting, then drill a 1/2" hole in the center of the caps. Clean up the hole with a sharp knife or exacto blade..... Voila, you now have a 4.5 Gram coupler for the cost of two bottle caps you were probably going to throw away.
The coupler you just created acts just like a cyclone tube as well so it can be used for a gravity feed or as a backflush connector
Oh the sweet smell of melting plastic . . .
Id reinforce the bag. Leatherwork supplies brass eyelets/grommets. Just use a broken bag first so you get the feel of how hard to hit the dye to crimp it.
The life of your bag will be greatly extened if you lay them flat in lid of your bergen pach. Additionally, run up a cotton bag on a ssewing machine to protect bag from other gear. If the water you are using is very murky, this can be used as a prefilter. Look up "Millbank bag". If you sew it shaped like that it will pour out at point you want simply by double or triple stiching and leaving angled end as a single stitch. A leg from old work pants or jeans is ideal. Running a copper wire inside top hem will allow it to stay open better as well as stay shut with bags inside.
This must be before sawyer came out with the little coupling piece. I think it goes for less then 3 bucks on amazon
Nice! I'm getting one. I already gravity filter from a camelback and tube I already owned but want to simplify, lighten and have more secure bottle connection. Win win win!
Hey I think that Sawyer coupling doesn't work because it must cause a sealed pressurized system not allowing water to flow, but you need air escaping as the water fills the pouch. I think this must occur by luck with the tornado where it connects to the Sawyer.
Searching for one now. Thanks
Thanks for info and where you got it. It's a Great Idea too. Thanks.
Quick hack for you here. Take two regular bottle tops. Heat the top of both on a stove until they start to melt then quickly jam the two of them together, back to back. They should melt together and then with a pointed knife or awe, you can bore a hole though the centre creating the same tornado tube for free whilst on the trail.
Sawyer sells a connector (blue).
it's easy enough to cut the tube the hard part is keeping it square ask me how I know
Your flow rate is impressive. I've just set mine up like this and my mine is dripping, but not flowing like yours. The filter is brand new out of the box, so I'm hoping it's just that. Not sure.
I find that I give the "dirty" side a little squeeze to get it moving, but once I do that, it flows great.
Same problem here. Set everything up exactly like the video. Tried loosening bottle from the outflow (clean) and tried squeezing dirty bag. Neither solution worked. My Sawyer is also brand new. Any other suggestions?
I bought a tornado tube on eBay for 99 cents. (Down side took like tree weeks to arrive)
I bought the tornado device and sawed off a small portion. No water will come out unless I squeeze the upper bag. Any ideas what I'm doing wrong?
Teri Behrens because the filter is packed with feet of hollow membrane, you won't get an instant flow. A quick squeeze in the top bag is usually needed to get the filter flowing.
Deflate the clean water bag or bladder before connecting to the filter. For water bottles, unscrew the bottle about 1/4 turn to allow air to escape while filling.
Sawyer offers a "Sawyer SP150 Cleaning Coupling" for about the same price as the Tornado Tube. The Sawyer Coupling (0.18 oz.) weighs less the Tornado Tube (0.49 oz.) and it fits better.
Agree with Bill, as I had the same issue. When using a bottle for catching the clean water, simply unscrew it slightly and the water will flow nicely.
Just get 2 bottle caps. superglue and drill a hole through the middle. Saves looking in the stores for a green adapter
$0.99 on ebay
$1.25 at Dollar Tree (although the stock is not consistent).