There are lots of ways to be an effective plumber. And Kbeck knows most of them.
In this case, a department store had old toilets that flushed by stepping on a pedal in the wall.
That was OK, except the pedal leaked.
Kbeck was asked to find an economical way to remedy the situation. It did.
Retrofitted the standard flushometer flush valves, and covered the access holes in the wall with a stainless steel plate.
no tile work required.