"John Stumbles" wrote in message
...
F wrote:
"Mike Faithfull" wrote in
:



KISS. A rad can be drained from the valve/radiator unions (as long as
there's room to get a shallow tray underneath) and you should have to do
this so infrequently that the added complication (and unreliability) of
a drain cock isn't worth it. Plus they look shyte :-)

I would have to agree with your KISS principle John - however, IMHO having a
drain cock, with whatever its shortcomings, is a small price to pay for the
speed and convenience of being able to attach a hose which can go straight
out the patio doors into an outside drain instead of spending ages pratting
about with unstable trays full of black nasty water - however infrequently
this may be required ... YMMV )