[Bell Historians] Trebles on higher numbers

[Alan J.Birney]

--- In bellhistorians at yahoogroups.com, "Martin Davies" <daviesm at g...> 
wrote:
> > Also the 9th has been quarter turned
> > 
> > But they've only been in just over twenty years - why did it need 
> turning so soon?
> > 
> 
> Apparently some porosity in the casting has resulted in some rapid 
> clapper wear. 


Was the fact known (and pointed out to the authorities) that the 
bell was a poor casting before/during tuning?
Does the fact that it is a poor casting mean it will need to be 
turned again in another twenty odd years or is it a case of suck it 
and see, and has the bell been overclappered in the past?

Alan