above the rim of the overflow tube and that the fill tube sends water into the toilet overflow tube. Flush the toilet and ... the chain to leave only a slight bit of slack when the flapper is ...

Most are single-flush models ... to assess how well a toilet gets the entire bowl clean. First, we use a water-based red paint to create a solid rectangular shape above the waterline in the ...

But for most of us, public toilets are actually a bit scary. If you squirm at the ... crouching precariously above the toilet seat rather than letting your skin touch it, and flushing with your ...