John Crimaldi is a professor of civil, environmental and architectural engineering at the University of Colorado, Boulder. Every time you flush a toilet, it releases plumes of tiny water droplets into ...

This summer, in Boulder, Colorado, John Crimaldi and his team of civil and environmental engineers gathered around a toilet — for science. They positioned a laser to beam green light above the lidless ...

File this one under “Studies We Wish Had Let Us Remain Ignorant.” Scientists at the University of Arizona decided to investigate whether closing the toilet lid before flushing reduces ...

Dear Ed: We have a sensitive septic system. Our service company recommended we install water-saving toilets to cut down on water flowing into the system. What do you recommend for minimum toilet water ...

My family always keeps the toilet lids closed whenever they're not in use for two main reasons: so that our dogs don't drink toilet water, and so nothing gets sprayed throughout the bathroom when we ...

A study found that the floor and walls around the toilet could still get contaminated with viruses from the toilet bowl even when the lid is down during flushing. (Photo: Getty) Will shutting the ...