D D DIYnotBot 23 Jan 2013 This image is referenced in the forum thread 'Tips for condense trap on Isar'
D D DIYnotBot 18 Feb 2013 This image is referenced in the forum thread 'Any tricks for dismantling WB plastic carp'
D D DIYnotBot 2 May 2013 This image is referenced in the forum thread 'What to use to clean calcified heat ex on ferroli?'
D D DIYnotBot 29 Jun 2013 This image is referenced in the forum thread 'Flue flow test on open flued boilers'