Didn't want to risk my phone around the stench. After 6 full days in the 84 degree water, the 3 skulls are at least 85% cleaned off. Emptied out the initial water, refilled with hot water, dropped in tank heaters and wrapped by up in blankets. Total time expended on 3 skulls so far is around 20 minutes and only expense is 5 gallon buckets, water, and tank heaters. I may buy 2 more tank heaters to expand my capacity.

Pics in a week when these 3 should be done.