On Sat, 1 Nov 2003 16:08:56 +0000, - wrote:

In article , John Flax
writes

the house. This sounds a damned good idea.


When I replaced my central heating pipe work down stairs due to a
largish rebuild and moving of rads I ran two lengths of 22mm to the
outside world and a couple of gate valves, I can now drain the whole
system in a matter of minutes. I also put in a couple of valves so I
could isolate the upstairs and not have to drain that if it wasn't
needed.
It is a very good idea unless any one can say why not. I've certainly
found no problems with it yet.

I think that the principle is good. The only thing is that gate
valves (if you mean the ones with the red wheel) are prone to seizing
and to seeping.

Lever ball valves are probably a better valve type to use and the
handle can be removed to prevent accidental operation.....



..andy

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