Just returned from backpacking the first 3 passages of the AZT from 5/24-6/1. Tub Spring was full (mile 8.3), numerous water available all down Sunnyside Canyon from about mile 13-16. Small creek about 2 miles into passage 2 and huge full stock tank off left side of trail around mile 8.9. Water was also available at Gate Spring 8.3 miles into passage 3 however it was off trail about 100 yards surrounded by barbwire fence, better to wait until a few miles later when trail crosses a stream.
Jay