D D DIYnotBot 11 May 2009 This image is referenced in the forum thread 'Install radiator pipes top/bottom or both at bottom?'
D D DIYnotBot 31 Jan 2010 This image is referenced in the forum thread 'Maths to see if it's right - not guesswork.'
D D DIYnotBot 10 Jun 2011 This image is referenced in the forum thread 'Bypass when using Grundfos Alpha2 pump'
