John Rumm wrote:

Phil Richards wrote:

All the information and some background as to how your system works can
be found he

http://www.makewrite.demon.co.uk/SealedCH.html

snip

No, your system looks fine. Topping up the pressure is one of those
tasks that you will usually only need to do should you remove rads etc.

Many thanks to John, Owain & Richard for all their help. I must say out of
the many newsgroups I read this seems to be one of the friendliest & most
helpful!

--
Phil Richards
London, UK
Home Page: http://www.philrichards1.pwp.blueyonder.co.uk