My rotary tumblers never turn off and have been running nonstop for ~3.5 years with minimal maintenance. My vibe tumbler has been running for 2.5 years straight, needs constant repairs and maintenance, hope it hangs in there, can't replace it these days due to supply chain issues abroad.
I have more than 100lbs of stone tumbling 365/7, but, the killer to my electric bill is not the rock tumblers: it is the heating elements in my reptile rooms, when it is -20F outside and I'm heating my rooms to 80F...ouch-now THAT is expensive...![]()