Black water toilet plugged

Bipeflier wrote:
Purchase and use a "Flush King".

Flush King - Amazon

X2, backflush with a Flush King. Been using one for years.

You can buy a drain valve fitting that has a hose fitting on it to back flush into your tank just before where you install the drain hose. You can also buy a gate valve that goes on the end of your drain line. If you need to back flush up to your gate valve into the tank. I would buy the two adapters I talked about. Put on the back flush adapter on the end of the trailer drain line. Put on the gate valve put the drain hose to the sewer. Close the added on gate valve back flush into the tank with the water hose adapter turn off the back flush water, drain continue until clean water comes out of the black tank.

I have a 2008 Forest River 5th wheel Cruiser, don't they have a black water cleanout if so where would it be located due to my clogged black water tank.

Thank you,((((Help )))))

Topic: Black water toilet plugged
Posted By: Happycamper30 on 10/10/15 09:42am

Does anyone know how to unplug a toilet we use Rv'ers tissue.

Happycamper30 wrote:
Mine seems to be by the black water valve I pull on the valve handle the valve shows it to be open because the rod moves under neath the belly but my question s since the holding tank is full how do I manually pull the flapper valve back without a mess

Thank you

So your toilet isn't plugged ?
It's the tank drain valve not opening?

Tank drain valve........you need to access the valve. If you have an enclosed underbelly that means cutting a 3 sided window (access panel) so that you can use a pliers on valve shaft and pull it open then you can repair valve if possible or replace as needed.

Mine seems to be by the black water valve I pull on the valve handle the valve shows it to be open because the rod moves under neath the belly but my question s since the holding tank is full how do I manually pull the flapper valve back without a mess

Thank you

My method is 100% fool proof, is very simle, doesn't cost money, and doesn't make people wait in line behind you while you diddle daddle around washing out holding tanks.

Never dump before driving some distance, or at least around a few corners, even if you leave a camp ground, and drive back in.

When I dry camp in the desert, I need propane and black dump at about the same time. So I get propane first, then dump. 100% fool proof.

If the clog is between the toilet and the black tank, you pretty much do what you would do in a house. Turn off the water, press the foot valve open and use a plunger. If the plunger doesnt work, its time for a snake.

Like path1, I fill the bowl 3x after dumping and then just use a normal amount of water with use. I settled on 3 bowl fulls by pouring a gallon of water in the bowl and seeing how much water the bowl held. A very full bowl was one gallon.

I also have a Tornado that I use occasionally to help help the tank clean.

Some tank configurations/dimensions are simply shallow and a PITA. Ours is like that and it doesn't take much for a pyramid to build up below the toilet. We need to do a thorough flushing before heading home otherwise it plugs up in no time on the next trip out. An in-tank flusher is better, but if you don't have one a back-flush elbow will help but won't reach everything in there. A wand down the toilet may help.

For a really stubborn build-up of solids in a tank, Liquid Drano will work great. Add about 5 gallons of water and go for a drive to make it slosh around. Tank will be like new after. Have done that twice with ours now. I think it's Thetford that makes a blavk tank cleaning chemical but the outdoor temp. needs to be something like 70F.

Prevention is the best cure. Always add 3-5 gallons of water before using the tank. And don't let it dry out and sit empty at home between trips keep a little water in it.

Purchase and use a "Flush King".

Flush King - Amazon