Kiddie pools are too shallow. Need one a full 2 feet deep. I'm thinking a livestock water tank.
Edit... Yep, a Tartar Ultra Oval 125. 60Lx24Wx24H .... add a boat bilge pump to swirl the water and small immersion heater and you got a redneck hot tub.
Ok, I did the research... you guys make it happen. Pics on this thread.