"Try Not To Go Too Often."

This may soon be the order for sailors on the US aircraft carriers USS Gerald R. Ford and USS George H. W. Bush.  Reports are that the toilet systems on them need expensive maintenance to prevent clogging.  It's the kind of thing that leaves you scratching your head.  The Ford class are the US Navy's newest carrier design, so you'd expect problems.  But toilets?  You'd think shipboard toilet design would be a pretty well understood field.  The Ford cost 12.8 billion dollars to build