On Mon, 3 Aug 2009 04:14:25 -0700 (PDT), Andy Dingley wrote:


I once had to deal with a bathroom flood where our only surmise
afterwards for the cause was that an unrestricted Torbeck like that
had caused the the threaded valve cover to split and blow off the
case, dumping the whole flow rate into the cistern (far faster than
the overflow could cope).

This is why the instructions (if you read 'em...) say to check that
the overflow can cope. Though I suspect they don't mean when the cap
has blown off just with the float held down or dropped off.

--
Cheers
Dave.