Here's a trick for getting that #10 hose with the grommet into the place without a huge hassle. Push the grommet to the end of the hose and over the crimped end but not over the nut. This allows you to squish the grommet into place. Then lube up the hose with some windex or whatever and push it through. Saves a lot of time fumbling, trying to squish the grommet though with the hose going though it.