Mechanics of factory installed black water flush?

[grantsoo]

When I took delivery of my unit today, to my surprise, it had a black water tank flush connection. I was curious if anyone knew how this factory flush worked. Is it just a nozzle, a couple of nozzles or maybe a rotating spray?

Also, it is a direct water hose connection. Most campgrounds I've been at only have a spray nozzle at the dumping station. What I was thinking is that I might have to carry a garden hose in addition to my potable water hose and hook it up occasionally when I'm on a campsite with a sewer connection. The warning on it says to only use when the dump valve is open.

Thanks
Grant

[norty1]

I feed mine from the camper water supply. It is a spray nozzle mounted high in the tank. If you have sewer you can do all the flushing right at the site. It has a check valve built into the system.

Make a note to never walk off while it is on or you will join the legions of us that has a mess inside when it fills up.

[Murphie]

The type that rotates is called the Tornado. I hear people rave about how well they work. Recently I've come across a number of posts where people complain that the pressure drops after a year and the head stops rotating. I bought one myself to install and am now rethinking this. I forget the name of the competitor but their product doesn't have the rotating head. People seem pleased with this product but I wonder if this will suffer the same fate. If a person poured some CLR into the hose and than blew it into the fixture with some air pressure and let it sit for a while, wonder if that would make a difference. Anyway thought you would like to hear some of my research on this matter. Good luck and happy camping.

[RedHorse1]

Originally Posted by Murphie

The type that rotates is called the Tornado. I hear people rave about how well they work. Recently I've come across a number of posts where people complain that the pressure drops after a year and the head stops rotating. I bought one myself to install and am now rethinking this. I forget the name of the competitor but their product doesn't have the rotating head. People seem pleased with this product but I wonder if this will suffer the same fate. If a person poured some CLR into the hose and than blew it into the fixture with some air pressure and let it sit for a while, wonder if that would make a difference. Anyway thought you would like to hear some of my research on this matter. Good luck and happy camping.

The CLR is an interesting thought but I expect most problems are caused by paper and "shtuff" covering the sensors. I'm not sure CLR would attack those. I've wondered if an enzyme drain cleaner might be an easy remedy. I've used it on the home drains with pretty good results.

[edatlanta]

norty1, Are you admitting you violated that warning label and operated the flush with the dump valve closed? I'll bet you remove tags from pillows also.

Shame, shame, shame.

[usmc616]

My TT has a black tank flush installed at the factory. I carry a "Y" water connection. I only camp at full hook up sites, so I always have a sewer to dump into. They want you to keep the sewer dump handle open to prevent the black tank from filling up and overflowing into the TT.

[norty1]

Originally Posted by edatlanta

norty1, Are you admitting you violated that warning label and operated the flush with the dump valve closed? I'll bet you remove tags from pillows also.

Shame, shame, shame.

Guilty your honer!

[yddad45]

Becareful when flushing your black or gray tanks with the valve closed. On my previous RV I had a Tornado flush installed and I blew it out of the tank twice before I read the instructions and realized it was back pressure in the tanks that were causing my problems. ALWAYs flush your tanks with the valves open. You may get away with it acouple of times but eventually it will get you.:hihi::hihi:

[drfife]

If your black tank is properly vented, you will not have a problem.

I've been rinsing the black tank on my trailer with the valve closed for 9 years and have never had a problem.