"Christian McArdle" wrote in message
t...

Drain the cold tank and replace the valve.

Or plug the outlet from the cold tank to stop the flow. There are custom
made plugs by Drayton (look like giants' earplugs and cost about 12 quid a
pair) and compression plugs from BES (and real plumbers merchants) or you
might get away with a wine bottle stopper (Vacu-vin) ... or use your
ingenuity!


I've started using lever ball
valves instead of gate ones.

Agreed: full bore level valves (under £5 for 22mm from Screwfix) are the
mutt's nuts



--
John Stumbles
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Bob the builder / it'll cost yer
Bob the builder / loadsa dosh