Cleaning the Gusmer D-Gun: Part 8 a Clean Mix Module Picture the Result. Announcements / Foam Insulation News Posted by Admin on Sep 04, 2006 - 12:24 PM A clean Gusmer D-Gun Mix Module port is shown below.  You have used your tip cleaner in conjunction with glycolic either and compressed air to remove foreign material from the block.  After rinsing liberally with glycol and triggering with air you should see completely through the mix module when the trigger is held open and the D-Gun is placed towards the light right in front of your eye for proper inspection. This article comes from Canada Foam Insulation   http://www.foam-insulation.ca/ The URL for this story is:   http://www.foam-insulation.ca/modules.php?op=modload&name=News&file=article&sid=26