Difference between revisions of "Waterproofing Techniques"

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We have all had the problem of opening a cache and finding a mass of wet leaves and mud inside. Here are some ways you can help this problem:
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We have all had the problem of opening a cache and finding a mass of wet paper, leaves, and mud inside. Here are some ways to make sure your own cache doesn't become one of these waterlogged messes.
  
*Check the seals on containers before placing them. If in doubt, fill up the kitchen sink, weigh down the container, and put some toilet paper or tissue in. Put the container in the sink, and wait a few hours. When you open it, there should be no water inside. If there is, here are some things you can do:
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* Check the seals on containers before placing them. Here are a couple ways to do this:
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** Fill up a sink or bathtub, close the container with some tissue paper inside it, and weigh down the container so it is fully submerged. After a few hour, retrieve and open the container. There should be no water inside.
** Buy a new container.
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** Place the container outside with some tissue paper inside it. Choose a location where it will be exposed to rain/sprinklers at least as much as the cache's intended location. After a few weeks, open the container. There should be no water inside.
**Get some silicone caulk, and spread a thin layer around the edge of the lid.
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* Use good containers. Cheap containers (e.g., semi-disposable storage containers) tend to leak more.
** Get some teflon tape and wrap it around the threads (of a pill bottle, for example). This comes in rolls, about 99 cents each. 3 wraps should keep your cache dry.
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* Spread a thin layer of silicone caulk around the edge of the lid.
**If it's an ammo can, check the gasket (on the inside of the lid, all around) before you buy it
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* Wrap some teflon tape around the threads (of a pill bottle, for example). This comes in rolls, about a dollar each. Three wraps should keep your cache dry.
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* If it's an ammo can, check the gasket (on the inside of the lid, all around) before you buy it.

Revision as of 18:48, 5 October 2006


We have all had the problem of opening a cache and finding a mass of wet paper, leaves, and mud inside. Here are some ways to make sure your own cache doesn't become one of these waterlogged messes.

  • Check the seals on containers before placing them. Here are a couple ways to do this:
    • Fill up a sink or bathtub, close the container with some tissue paper inside it, and weigh down the container so it is fully submerged. After a few hour, retrieve and open the container. There should be no water inside.
    • Place the container outside with some tissue paper inside it. Choose a location where it will be exposed to rain/sprinklers at least as much as the cache's intended location. After a few weeks, open the container. There should be no water inside.
  • Use good containers. Cheap containers (e.g., semi-disposable storage containers) tend to leak more.
  • Spread a thin layer of silicone caulk around the edge of the lid.
  • Wrap some teflon tape around the threads (of a pill bottle, for example). This comes in rolls, about a dollar each. Three wraps should keep your cache dry.
  • If it's an ammo can, check the gasket (on the inside of the lid, all around) before you buy it.
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