Why replace them if they're working?
To find something more reliable. Just because they haven't failed yet,
doesn't mean it won't. There are countless tales out there of
failed mechanical switches. I don't have to personally experience the
failure to prompt a change.

Of course, that's not to say that the non-mechanical switches may not
have their faults too.


Pszemol wrote:
"Roberto Quijalvo" wrote in message
...

Have you looked into the non-mechanical switches?
http://www.aquacave.com/detail.aspx?ID=254
I'm thinking about replacing my switches with these.


Your mechanical ones do not work ?
Why would you like to replace them ?