Virgil,

At the panel, you will connect the white wire from the 2 pole GFI breaker.

There is no need to connect a white wire out to the tub if it isn't needed at that end.

A 2 pole breaker works the same way as a 1 pole except in this case 2 hots & the grounded conductor pass through a little transformer. If the imbalance of current exceeds a certain value, the breaker will trip. In other words, amps flowing out must equal amps coming back (or real close to it). The reason that the breaker neutral is connected is that the trip mechanism may work on 120 volts and the instructions (that piece of paper that you thought was packing material [Linked Image] ) will most likely tell you to connect it.

Visit the International Association of Electrical Inspectors at http://www.iaei.com & you should find the following book for sale, which will tell you more than you care to know about GFI'S.

Overcurrents and Undercurrents by Earl W. Roberts

HTH

Tom

Few things are harder to put up with than the annoyance of a good example.