Originally Posted by WearyTraveler
I searched and read a few responses but none actually answered my question...
I want to buy a hose specific for flushing out my black tanks. I read about attachments that prevent backflow. And yes, preventing it is a good thing.
Is the attachment nothing more than the valve that shuts water off? Or is it a special valve that has some sort of diaphragm that prevents water from backflowing even while open?
We’re going to Lowe’s this weekend.
If you have a black tank flush port than you already have a back flow valve installed in your coach. It prevents any of YOUR JUNK from siphoning back into your connected water supply.
Back-flow prevention is for real. There are many types. Both Fresh water and sewerage. My house has back flow prevention on the incoming waterline per the building code so I cannot siphon anything into the city water supply.
My seasonal site campground had to install then on every site this past summer. They prevent the reverse flow of water.