For many pool owners the pleasure of having a pool is somewhat spoiled by the work involved in keeping the water clean. Worse still, pool cleaners are usually chemical based and it is now an established fact that chlorine and its by-products are simply not safe for your health or the environment. Robotic pool cleaners can be used and do a good job in removing organic substances, but it would be far better to not have chlorine in the water at all.
Chlorine is a chemical that is dangerous to our health. When children especially, play and swim in a pool they are quite likely to swallow some of the water. Even if it is not swallowed, it is absorbed by the skin and the gas that forms from it is inhaled by swimmers and watchers alike.