How to use stock tank for Hot Tub?

[meanwhile]

My kids want to turn a 350 gallon rubbermaid stock tank into a Hot Tub. They have seen the Solar suggestions on the Do It Yourself Solar site, have lined up water hoses to heat the water but we need to know what type pump to buy? Any pump suggestions appreciated and tips on how to hook it to the tub. Thank you.

[The Paw]

not sure about how to do the solar heating, but if you don't go ahead on that idea, there is a company that makes wood burning hot tubs. I think it is called Snorkel Hot Tub or something. They sell an aluminum stove that sits in the water with a snorkel air in-take and a chimney sticking above the surface.

I would imagine you could rig one of those to work with a stock tank.

[Beeman]

I'm just guessing but a used pump and filter from a swimming pool would probably work. There should be plenty of cheap used ones around from the small pools they sell at Wal-Mart. That would give you filtering and pumping cheaply. Most that use a stock tank or other tank use the wood burning stove described. Solar or wood burning I would say it will be hard to regulate temp.