1. Completely pointless. If you are in an area where you can collect drinkable water this way there are much easier ways to get it.

  2. I usually carry a large 55 gal. drum liner for emergency water collection, it rolls into a roll no thicker than my thumb, so it takes up very little space.

  3. Filled my water bottles heaps of time in the morning like this. If you leave a corner ties a little loose when you go to sleep, it collects a bowl full of water during the night.

  4. I've done that a few times on rainy backpack trips. Some trips I never broke out the water filter, just used rainwater for drinking, cooking and clean up.

  5. Anyone have recommendations on tarps that are not treated with chemicals? I know there are shower curtains, but there’s not an easy way to hang it up to collect.

  6. You can setup a normal tarp as well without that much sag, and then put a small rock anywhere on the tarp. That will create a depression and collect water there. If you have put the rock in the fire in the night and let it cool (to sterilise it), even better.

  7. A wise man once said carry enough tarps to stay dry and add one. That was me. A poncho or space blanket or even a painters film tarp (which is ultra light) can be used to collect rainwater without reducing shelter capacity.

  8. Well suppose it is raining out, couldn’t you just sit the cup in the rain and use the shelter properly to keep yourself dry?… asking for a friend…

  9. I’ve tried this technique before and it worked pretty well. My poncho hood kept filling up with water which made it a little more cumbersome but I like the idea overall

  10. I generally carry two lightweight tarps, sometimes 3. Makes for a larger shelter, ground cloth when conditions are really wet, additional shade, etc.

  11. I sometimes carry a cheap backup shower curtain or even tablecloth.
    The latter has some thermal layer benefit if temperatures drop below freezing. While essentially disposable, they both have superior waterproofness over some more durable gear that gets worked hard (lots of my gear).

    Being that they are back ups, I can use them for whatever and still keep my main tarp up as prrsonal shelter.

    I personally like the center scoop method – find or dig a little depression where the center of my shower curtain goes, then tie off corners using sticks, stakes or whatever.

  12. But if it's raining there's no need to collect water with your tarp just set your container in a place where the run off fills your container

  13. If a trap is rigged to drain to a corner, so that the water exits off onto the guy line tied to that corner, and at that corner a short rope is tied around the guy line tarp joint, and this rope hangs down into a container, then runoff water will (1) gather on the tarp, (2) run down to the bottom corner, (3) run off of the corner, and (4) down the rope into the container.

    Tie the short rope onto the junction of the tap-guy line with just a simple overhand knot. Pour some water on to test the system. Adjust as necessary.
    Courtesy of Half Vast Flying.

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