Not trying to be rude, just direct:
If you expect someone you've never met to sit down, think about
your problem and then take more time to write out a thoughtful intelligent solution, you should expect to have to put in some more effort yourself in your request.
-What have you tried so far?
-How long have you had the tub
-Did you contact the previous owners
-Can you post picture of the motors, including any identifying information (serial numbers/model/year etc)
Someone has to know something come on guys I need some help.