Yes!!! Works great. I have used mine for almost 2 years and it works exactly as advertised. I replaced the short length of hose with about 50' of the same type so I can run it into a clean-out in my basement. I also use it to back-flush my grey tank.
We often dry camp and arrive home with full tanks. Driving by long lineups of RV's that are waiting at dump stations by the highway on long weekends when all you want to do is get home is a great feeling.