On 09/10/2019 14:15, Dave Plowman (News) wrote:
In article ,
dennis@home wrote:
Thing is the bell box should be situated where it's difficult to get
at. Which means changing it or the battery equally difficult?

The battery is fine for years.
Not all buildings have somewhere difficult to get to.

Handy for a can of foam, then?


When chubb fitted real bells they had a special box specifically made to
stop expanding foam from getting in. They were the triangular ones. I
won't comment on what they did as they may still use them for all I know.