Removing the Suncast Hosemobile intube can be tricky. In my case, I had overtorqued the water hose and cracked the intube (DOH!). Took me a while to figure it out how to remove the intube to replace it with a new one (purchased for $7 from Suncast website). It now appears very straightforward to do.
You have to pull on any one of the two white tabs in the out-tube region. The tabs have instructions on them that say "PULL HERE". Use a long flat head screw driver, and insert it in the small opening in the region were the outtube connects to the reel spoke. Pulling on the tabs with the flat head screwdriver blade will release two small but hidden tabs just behind the intube. Pulling on the intube while pulling on the tab with the screw driver will release the intube. You can grease the two O-rings once the intube is released. Installation is as simple as pushing the intube back in, the two tabs will then engage to lock it in place. Hope this helps, bottomline is that it pretty simple once you recognize the function of the two white tabs.
Hockessin, DE, September 2010