In article , Cuprager wrote:
Why would anyone install a central heating system without
putting in proper provision to drain it?

Because if they're not going to flush it through once it's installed
what's the point? Can't you spell cowboy? g

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Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk
Free SEDBUK boiler database browser http://www.sda.co.uk/qsedbuk.htm