We have invested in a new Robotic Pool cleaner from Baracuda and so far nothing but impressed. The Captura cleans our 9x3 pool in about 1 hour. We have a quartzon surface and it climbs the walls no problem. If it gets stuck it just throws it into reverse and moves along. $999 from Bunnings. It works independently from the pool filtration so the skimmer box is able to continue skimming the leaves and other surface rubbish. Love it.