Wheatgrass,
I don't think Chiron or anyone else will have any objections to you reporting on dry fasting every 3rd or 4th days while you water only fast, because dry fasting is something you do anyway when you drink according to thirst alone.
Fasting proper then is: the abstention from any form of nourishment with the exception of water and air, so just because you are going without water for a certain length of time does not break any rules per se.
Fonty used to refer to Dry fasting quite alot within this forum.