I have a RV Sanicon and it works just fine. My biggest complaint is with the size of our tanks, it takes too long to empty the tanks. I use mine when I am traveling but if I am parked for a month or more I use the ole 3 inch hose. The 05 Alpines have the gray water tank below the black water tank and the gray water bypass is not very effective. Just my 2 cents.
Wayne & Kathy
05 Alpine 40FDQS #75330 Towing 24' car hauler, 2012 Spyder, 2003 Harley FatBoy