For a ready source of clean water, I always take my Katadyn Exstream Purifier to Ecuador. It is easy to carry and provides a ready source of water. Just be aware, when traveling through the airport screening areas, to have it separate or in an outside pocket of your carry-on backpack as it will show up “funny” on the x-ray machine, but other than a “what’s that”, I have had no real problems.

Standard things like duct tape, wire, wire ties, SAK, FAK, sewing kit, etc. that you have seen listed in various posts can all come in handy.

Pete