LOL
Re-read the email Ryan and what I was responding to (I actually was saying "if you think that's hard, try installing it without any lube like I did!!).
Try the aid of a long thin flat head screwdriver. Put the screwdriver in the hotpipe, then push one side of the HDi pipe into it.
Use the screwdriver around the end of the HDi pipe (whilst applying force to the HDi pipe) to pop the hotpipe over the HDi pipe.
(I hope that makes sense)
Which nuts are you guys talking about? The ones from the supports into the cooler? What is wrong with them?
As an aside, anyone else who buys these kits and don't receive instructions, I should mention that using WD40 on every silicone joiner makes life a lot easier... not that I twigged to the idea when installing mine