Mine dying is always what sends me down the rabbit hole too. I’ve run a couple over the years, corded and cordless, and the one that’s stuck around the longest for me is a Dolphin Nautilus CC Plus. Not exciting, but boring reliable, which is kind of what you want. Floor and walls get done, filters rinse out easy, and it doesn’t need constant babysitting. I run it a few times a week and it keeps the day-to-day debris under control.
That said, I learned the hard way that even the best robot has limits. After heavy bather load or windy days, mine would run its full cycle and the pool still looked a bit flat. Filter pressure would creep up 4 psi, chlorine was fine, pH steady, but the water just had that dull look. Turned out the robot was chasing suspended junk it cant really grab.
What helped was treating the water first, not upgrading the robot. I’ll use aquadoc flocculant once in a while when things get messy, shut the pump down overnight, then vacuum to waste in the morning. Once the fine gunk is gone, the robot suddenly looks like a hero again instead of a slacker. So yeah, Dolphin is my pick for reliability, but it really shines when the chemistry and filtration arent fighting it the whole time. Anyone else notice robots work way better once the water’s actually clear, not just circulating?