Probably just to be ornery
, but I'm going to take the other side of the topic.
I have the Sani-Con as well and very seldom use it. After 30+ years of camping, I kinda look forward to the WHOOSH of discharge from that great big hose (yeah, I know I need to get a life, or at least a more-productive hobby), rather than the spit-sput-drizzle from the small one. Makes me feel better that the tank is being evacuated and scavenged better than simply dribbling out.
Additionally on my coach, the pump was mounted higher than the black-water outlet, so consequently there was always some discharge just sitting in the drain-hose with no way to get it out - save disconnecting the fitting and catching the glop that has been collecting.
And I might be a bit prejudiced from one time (at the stick-house) when I tried to pump it about 80 ft, only to find a clog ended up blowing off the fitting on the end. Naturally, it happened where I couldn't see it (til I could smell it), and I ended up merrily pumping 25-30 gallons all over the patio and walkway. Bet the dog was mad too (... "Hey! You scold ME for making a mess where YOU walk, and now YOU do this to ME??!! I suppose I'm gonna get blamed again??")
On the other hand, it does come in handy at times. We were camped at this superb resort around a central lake, but the sites and facilities were situated so rv's typically are going to back-in, missing the view. We got permission to face front-in to enjoy the view, and it was great... Til dump-time. Initially I was going to undock and trudge over to the dump-station, til I realized I could easily reach my site's sewer-line if I used the Sani-Con. So I dug it out, it did its job, and I celebrated for not having to disconnect/re-connect.
Ok, maybe it does have a place in our coaches. But I doubt I woulda got it if it wasn't already included.
I think it's spec'ed at something like 200ft linear distance and/or 20ft high (which made my neighbor very worried when I brought home the new coach, seeing as our fences are only 7 ft high and about 30 ft apart
). The details are probably listed on their website.