After reading through many different threads regarding termites as feeders, I decided to give it a go at trapping some. I really was drawn towards the PVC method. I couldn't find any 4" pvc at a local Home Depot, so i grabbed two 2' x 6" pieces, two 6" drain caps and a few large cardboard boxes. Please see photojournal below...

Step 1: Soak cardboard so it is more plyable.
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Step 2: Rip cardboard to desired length. I decided that I would let the cardboard stick approx 3" below the tube.
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Step 3: Roll cardboard together so that it fits snug in the tube.
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Step 4: Place wet piece of cardboard scrap in drain cap in order to help lock in moisture and at the same time, keep light out. I chose to use drainage caps to allow good ventilation and easy access to view/add water to the cardboard.
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Step 5: Cap tube.

Step 6: Locate termites. This spot has lots of dry-rotted wood and I have seen plenty of termites and even a few slender salamanders in this pile.
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Step 7: Dig 6-8" deep hole allowing at least 2" of play around the tube.

Step 8: Place tube in hole.

Step 9: Fill dirt back in around tube and tamp around for added stability.
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This is my first attempt... I hope in a few weeks I can expect to see some termites living in here... I also forgot to take into consideration before starting this that it might be too late in to the year to do this... Oh well if so, at least I have a trap ready to go!

Cheers!