Hello! Here in Argentina summer is about to start.... as well as some tedious backyard duties like cleaning the pool. I have been looking at some pool cleaning gadgets, and honestly don t know if it makes any sense to spend money on that. Basically two types are offered down here: one (called Dolphyn) is operated with 12 v supplied from a base at the poolside (filter is inside) and runs on caterpillars. The other one runs on wheels and has to be connected by means of a 2'' hose to the filter of the pool. The latter is called Zodiac. Have you also been tempted to get one? What have you got? Do they work or are they just expensive ways to waste one's money? Thank you!