FALSE-Clear water does not necessarily mean clean water. Clear pool water has been oxidized (organic contaminants have been broken down and destroyed). However, to ensure healthy swimming conditions, pool water must also be sanitized so it is free of bacteria and algae. The only way to determine if water is properly sanitized is to test it using a reliable test kit. Acidity in the pool for those only using chlorine can be corrosive to your pool equipment but also irritate a swimmers skin especially young swimmers.