On Sat, 31 Mar 2007 13:42:32 +0000, EricP wrote:

Change it for a "quarter turn full bore lever valve". They are very
cheap and work.

But a tad longer than gate valves and sometimes the gate valve's
compression fittings have a different thread so not always straightforward
to replace. (Also factor in no play in the pipes, 3/4" pipework etc ...)

Still worth doing so though.