I need to drain a heating system, or at least the top floor.
Trouble is the pipework which is all under the floor raises
about 6" out of the floor before going into the duct which
takes it downstairs. So no amount of draining from downstairs
is actually going to empty the upstairs pipework -- only the
radiators.

Anyone got any ideas on emptying the pipework? I can cut into
it under the floor (actually, the reason for draining it is
to move towel rail connection to it, so I will be cutting
it anyway). Obviously don't want it pouring through the
ceiling below though, as it's literally just been decorated.
Not sure if I can get any sizable container under it.
Don't have a wet vac.

(Pleased to say that when I designed and installed my own
heating system, I arranged that all the pipework slopes
down to the drain points, specifically to avoid exactly
this sort of situation.)

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]