Owning a swimming pool can be something of a double-edged sword – a pleasure for the cool relaxation it provides, but a burden because of the constant maintenance required. If the problem isn’t regular checks of chlorine levels, pH and alkalinity, it could just as easily be the ongoing physical clean-up you need to perform. Most people rely on pool cleaners for the lion’s share of this work, and with good reason – scavenging robots can be surprisingly effective a [...]