what does this mean (flush valve)

[Villagerjjm]

I read those posts.... and I also saw what happened to a camping neighbor. Maybe that he had older trailer and the seals were not as tight. The seals are not designed or intended as pressure seals.

[itat]

Originally Posted by spock123

I use a dedicated hose for the black water flush, the shower hose.

This is a perfectly good method as long as you have a working backflow preventer on either side of the flusher port on the side of the trailer.

[spock123]

I have a backflow preventer on the side that goes to the black water flush

[itat]

Originally Posted by spock123

I have a backflow preventer on the side that goes to the black water flush

I bought my current TT used and it is my first with a black tank flush. I had previously read about the factory plastic backflow preventers breaking so I checked it and discovered that the previous owner had replaced it with a plastic 90 degree fitting, so I bought a brass external backflow preventer (aka vacuum breaker) to use on a dedicated flushing hose.

(Sorry the photo turns on its side.)



Everbilt 3/4 in. Hose Bibb Vacuum Breaker-VACBFPZ4EB - The Home Depot

[benchmarks]

Originally Posted by emm-dee

The OP has the answer. It's not an unusual question. I've had several trailers with black tank and a few of them had the flush system. But, my current trailer is the first one I've had that had the "fullway termination" sticker. I was puzzled at first about what it meant but finally figured it out.



The other stuff about backups, vacuums, etc etc etc, has been hashed out way too many times. If someone doesn't have enough common sense to know that if you continue to put water into a black tank it's going to come out somewhere, eventually, then when it happens it won't be pleasant. I hope they don't confuse me with someone who cares about their situation.

[emoji1360]

[Wolverine 1945]

I am guessing many RVs are like our Sunseeker,,, the Flusher connection is on the passenger side,,, and the Dump valves are on the drivers side !!!
I have hooked the Flusher up a couple of times @ home,,, and have never got anything but clear water to run out of the Black Tank ???
With our old TT I used a Toilet Wand,,, and always some stuff to flush out !!!

[timfromma]

My flusher connection is on the same side as my dump valves and just above my city water connection.

[Wolverine 1945]

Originally Posted by timfromma

My flusher connection is on the same side as my dump valves and just above my city water connection.

So you can hook up @ the Dump Station,,,
and hang out for 20 minutes or so hey ???