turbojimmy,
OK, sounds like you've got a good plan.
Those SewerSolution hoses are interesting. When I first got the system, I put clamps on the connections as it just looked too likely that they would separate on their own. But after a year, I started living a bit dangerously and just put them together. The hoses do hold fine. To separate them, you have to twist and pull. Just pulling won't separate them. I guess that's one of the reasons why SS charges so much for their hoses. It is neat, and, of course, it works up until the time it doesn't. :) THEN there'll be a mess.
So for now, I have a clamp on the end that stays connected to the rest of the hoses/PVC pipe combo that make the run to the house, but I just push on the connection to the SS hose when dumping so I don't need to clamp that connection. I feel like I'm kind of hedging my bets! So far, so good.
Oh, a couple other words of advice if I may. First, I use a short piece of clear pipe between the black tank connection and the sewer solution. For my rig, it makes it easier to connect AND I can see what's coming out the pipe much better to give me an indication of just how clean I got the tank when flushing. The one I have is similar to
this one from Camco. The reason why this is important is the SS doesn't have the "whoosh" effect of dumping through a 3" hose. Rather, the tank drains more slowly, and I think it's easier for paper and stuff to be left behind in the tank. Rinsing and observing what comes out helps make sure the take is clean. I find this especially helpful at the end of the season when winterizing.
Second, sooner or later, an "ear" lug might crack off the sewer solution and then the connection to the black tank won't be very tight, and will leak. I think my first one lasted about 5 years or so, but I do use it a lot. So, I ordered a new kit and all is well. NOW, I keep a spare on hand "just in case". Murphy's Law dictates that the thing will break when your tanks are full and you need to dump now. On the plus side, with the three units I've purchased, I have 3 sections of their "miracle hose", which I bring for those campgrounds where the sewer hookup is a bit further away than it should be.
Safe travels,
~Rick