
buddybar wrote:
Quick question. Heading to a couple of RV Parks that are new to me and reading their rules about sewer connections.
Once campground says: "Use of rubber donut or watertight collar on all sewer connections is required."
The other says: "Sewer drain hoses should have a doughnut seal or a sealing type fitting."
I have one of these elbow fittings at the end of my hose. Is this sufficient for what they are talking about?

Some campgrounds when they mention rubber donut seal are speaking about the pic I have added.
What you have, like I is a Rynoflex sewer attachment that will screw into to most sewer connections. Many campgrounds do not have this option, instead they have a non threaded pipe coming out of the ground. Most of these campgrounds will list the rubber donut as a requirement, fits snug in the whole then your ryno adapter can be jammed down in it with little to no movement.