I'm not sure if the Dolphin is the exact same thing as the Aquabot, but you have to rotate the handle after each cleaning. I got mu Aquabot on Ebay from Waterworks and they have been great. I had to send it in for service and they put a new motor in it for me ans shipped it back in about 2 days. They gave an extended warranty above the manufacturors too. Like posted above, check the feedback on the person you are dealing with and use a credit card through paypal. I buy a lot of stuff from Ebay. I used to be "smart" and buy my Baquacil by the case on Ebay and saved a lot of $$$. Then I discovered this wonderful site and the 3-B's of pools, and I can use the extra $$$ to buy a half a tank of gas.