14 broken strings in a month

[A440A@AOL.COM]

Carolyn writes: 
>Breaks seemed to occur at plate bridge.  Bridge seemed smooth,
>unmarred.  Strings not rusty.
>
>Any ideas on what's happening?

Greetings, 
    Yes,   Carbon steel has the unique ability to go through unlimited cycles
of stress, as long as they are not beyond its elastic limits, (think valve
springs in a million mile truck motor). 
    The strings in this piano have been hit hard enough, long enough, to use
up all "nine lives".   Now your job is to sell a restringing!  
Good luck, 
Ed Foote