Yahoo-chick

As an electrician we use these for pipe that may need transition from inside to outside or from out of the ground, pipe that might move with temperature change and frost. It is called, "expansion pipe". If you can't find it at your local hardware store, try your electrical supply store. In Canada we have Nedco. It also comes in various sizes from 1/2 inch up to 4 inch. good luck.

First time posting...oops...message below..regarding how to find what you used and what we call it. Also...yes it is designed to be sealed and water proof with movement.

I wonder if you could just go to your log and add it as a drop off and pick up on the same log as your visit to the cache prior to the person grabbing it from you.. I would think that would also work and not affect the later visits it made... :/ ? Then every thing else should stay the same...

P.S. You can alway get hints from previous logs or the photo gallery!

I love my 9.99 app Definitely worth it! You need internet to download caches but then you can save them and they are there for when you don't have a connection, you also have maps and a compus which work really well and usually can get my anywhere from right there to within 10 feet depending on how moody it's being! lol This app is all I've ever used! Much less expensive to try than the GPS especially if your not sure you will keep this as a hobby. But once you start finding those bigger ones I'm sure you'll be hooked! I agree with all the others with starting with bigger caches but don't forget to bring something to trade. I try to make sure the bigger ones I go to have lots for younger people...I'll usually throw in a small coloured styrofoam egg and maybe a marble or plastic diamonds, etc. in exchange for something of interest to me.