The $1.7 million “ozone nanobubbler” being used in an effort to make the Lincoln Memorial Reflecting Pool water crystal clear ...

Bulky “nanobubbler” machines were carted off ahead of a promotional event for President Trump’s Ultimate Fighting ...

As the United States approaches its 250th birthday celebrations on July 4, Washington, DC's monuments, statues and fountains ...

The reflecting pool turned an interesting shade of green awfully fast. Here is why.

Q: We like to use our swimming pool and spa, and we want to use fewer harsh chemicals to protect our skin and the environment. A: The use of typical purification chemicals for residential pools and ...

Q. We spend a lot on swimming pool chemicals. The chlorine irritates my eyes and makes my skin dry. How do no-chemical ozone pool and spa purifiers work, and are they safe? — Ed K. A. Ozone is ...

Dear Jim I have thought about using a no-chemical ozone or salt purifier kit for my swimming pool to save on chemicals and reduce eye irritation from chlorine. Are these kits effective and do they use ...

Q:We like to use our swimming pool and spa, but we want to use fewer harsh chemicals to protect our skin and the environment. Are ozone water purifiers effective and do they consume much electricity? ...

Q. We like to use our swimming pool and spa, but we want to use fewer harsh chemicals to protect our skin and the environment. Are ozone water purifiers effective and do they consume much electricity?

Question: I am considering using an "activated oxygen" purifier instead of chlorine for my swimming pool and spa. Chemicals are expensive and irritate my eyes. How much electricity does a purifier use ...