RIO DE JANEIRO - The Rio Olympics diving pool will be back to is 'classic' blue color later today, Games organizers assured, blaming a drop in alkalinity levels for an uninviting green hue during ...

Spann added: "The only way to ensure pool or hot tub water is properly balanced is through regular testing of its 10 key chemistry components, including pH, alkalinity, sanitizer levels, calcium ...

RIO DE JANEIRO (Reuters) - The Rio Olympics diving pool will be back to its blue colour later on Wednesday, Games organisers assured, blaming a drop in alkalinity levels for an uninviting green hue ...