CBakwin wrote:It sounds like water will be available at least in the form of snow, on the mountains, any sources of water as I walk past Caldera del Inca up to Pissis from Bonete?
When we were in Puna last February we also counted on snow... the first snow on Incahuasi was at 6200m (on the Eastern side) ! Nothing below !!
Of course it depends on when you go, which side you're climbing, which summit you will attempt. But don't expect too much. Also, running water in the Puna is usually dangerous to drink as it contains a lot minerals (copper, sulfur etc...).
For our two-day ascent, we had to carry 24 liters of waters with us (4 litres per day for 3 people). To be honest 3 litres per person and per day would have been enough (for cooking and drinking). So don't underestimate the rareness of water there. Wind and water are the main obstacles.
You can check out this album from the Puna I posted a while ago. Some of the pictures are not mine, but on those which are mine, you'll see that it was very dry everywhere : Puna de Atacama