pizeo-electric interference
In the long run we are all dead. -- John Maynard Keynes
If you laid all of our laws end to end, there would be no end. -- Mark Twain
I suggest you locate your hot tub outside your house, so it won't do too much damage if it catches fire or explodes. First you decide which direction your hot tub should face for maximum solar energy. After much trial and error, I have found that the best direction for a hot tub to face is up. -- Dave Barry, "The Taming of the Screw"