Polychute RV Sewer Hose

I have had no problem with orings, I leave it hooked up to the motorhome. I think the best part is the valve on the end so the hose does'nt leak in the compartment.. I made a plastic cover for the very end of the valve that sticks into the sewer connection at the rv park, it's the cleanest way to handle the hoses I've seen or found. Problem with macerator systems is they drain the tanks to slow, so the solids have more of a chance to just settle in the tank, rather than carried out with the faster drain of the 3" hose.