I post for your approval. The Forest River Floodomatic.

Have a Forest River product, look for this on the line from the black tank flush to the tank, typically in the bath vanity cabinet. Then cut the POS out of there and connect it direct, or if you must replace it with a better vacuum breaker, or just leave it alone if you like living dangerously. It may be the new Forest River floor automatic cleanotron, but it's not listed on the option list.

And before you say it......no I am going to contaminate the entire US potable water system.....