[Bell Historians] Worn out garments show new patches

[Bickerton, Roderic K (SELEX) (UK)]

I do not disagree, I actually said: 
 
"> There are hundreds of installations built this way and it works well
> enough, but can never be as stable as all steel."

I should have said:
"but can never be as dimensionally stable as all steel in the face of
changing water levels."

Andrew said:
" performed 
perfectly adequately for a great many years, with relatively little 
maintenance."

The point I was trying to make is the potential of problems specifically
where the in tower environment or geographical location result in very
variable water content.
I failed to express myself properly.
Apologies.
Rod



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