While toilet bowls are designed such that the contents are supposed to flush downward, scientists have known for decades that ...

Rim jets are small holes under the toilet bowl’s rim that release ... from these drains when you flush the toilet. Homes on septic systems have a special set of potential problems.

single-flush toilet—and can use far more if they require a second flush to completely clear the bowl. Consumer Reports testers also found that not all toilets within a brand are created equal.

Q: My old toilet has black stains where you see water, not on the sides of the bowl. I have tried using ... one and don’t get the results you want, flush at least twice before trying the other.

A team of researchers has tackled a riddle that surfaced after the COVID-19 outbreak: Is it more hygienic to close the toilet lid before flushing ... a toilet bowl was installed in a sealed ...