I use a Gen-Turi model (CAMCO brand) and it seems to work well...Carries the exhaust vertically and away from my slideout that sits next to my generator exhaust. Compact and easy to install and remove.
I have one that I use with a 3/4" Garden hose. The hose is 100'. Relatively flat grade. Works fine for me. Use it just when I return home and haven't pumped out when traveling.
Can't believe some of these replies. I wouldn't touch south Texas or AZ. Human nature says that DESPERATE PEOPLE DO DESPERATE THINGS. Plain and simple.
Windows has a Snipping tool that works great for taking a screen shot (several formats) and lets you draw/crop to just the size you want. Search for it on programs and files.