- Tub status as of Sun Jun 16 01:35:13 EDT 2002 Oops, the ozone corroded too many sensor wires. The Miniboard isn't working anymore. This is old or perhaps outright wrong data. I'm putting together something newer and better. Keep in mind, that this is totally worthless, so this is not a high priority project. Aack, the tub thermistor is shorted, I don't know how hot it is. The ozone generator is ...hamjudo.com/cgi-bin/hottub