Made the mistake of buying. Thought it would bubble and splash a little bit and last at least 5 or more minutes. Totally wrong. It splashes wildly all over for less than 2 minutes before everything evaporates. Splashed all over walls and onto the bench not just over the stones and we had it in the center of our sauna heater. Refilled several times before giving up as directions did mention something about first time filling. Quite disappointed.
Does a great job and nice conversation piece