Well, this summer I am working at a pool, this past Saturday our pump stoped working, its amp rating is 19-21 on 220 -240v. Since last year we had been having problems with the breakers so I figured this issue was the breaker just finaly giving up and saying that i don't want to work anymore. So after an hour of arguing with my management company I convinced them to send an electrician out to check it out, I am not permitted due to liability reasons. so after the electrician came we found out that the pump was using two single pole 20 amp breakers with a little piece of metal to bind them together to make a double pole. the electrician said the breaker was undersized because of startup surges so he put in a 30 amp double pole (its not a gfci/rcd breaker...). after that the pump still did not start so he came to the conclusion that the pump is burned out....it was replaced two to three years ago. so now they still have me working at a pool that no one can swim in currently.... so that was my interesting weekend.