On Thu, 7 May 2015 22:31:41 +0100, "Brian-Gaff"
wrote:

Its way beyond wd 40, its actually squashed and I suspect the brass will
break if I have to reset it many more times.
Brian

Is there some amplification involved, so that only a few mA is enough
to sound the bell? If so, that's the problem. Water in normal bell
pushes doesn't pass enough current to sound an old fashioned bell.
--
Dave W