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Open Roads Forum  >  Class A Motorhomes

 > Clogged black tank. Help!

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Fire Instructor

Upstate (Albany) NY Area

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Posted: 06/09/11 03:14pm Link  |  Print  |  Notify Moderator

If the angle of the toilet pipe won't let you put a high pressure wand down the hole, then pick-up a Tornado Flush and read the directions carefully. Drill the hole for the Tornado Flush opposite the dump pipe, where it's supposed to be, then use the hold to insert the high pressure wand until you get the solid block broken up and flushed. Then install the Tornado.


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rvten

Crossville,TN

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Posted: 06/09/11 03:32pm Link  |  Print  |  Notify Moderator

Look for a water flushing wand that is flexible. I carry one with me all the time. Can be used from inside or outside. Like Wolf says. If flushing from the outside. Be over a dump spot.


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Tom N

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Posted: 06/09/11 04:18pm Link  |  Print  |  Notify Moderator

I was in FL and my neighbor was having black tank problems with his 5th wheel. 5th wheel toilets may not empty directly down into the black tank like most motor homes do. They have a run of pipe that may have a few 90 degree bends before emptying in to the black tank. This set up is more prone to blockage.

My neighbor called a mobile RV service. The repairman had his blockage cleared in minutes.

What he used was a piece of cable (wire rope) about 3/8 inch in diameter. He pushed it in and out of the toilet drain until the cable broke up the clog. Took only a minute.

Go to Lowes or Home Depot and buy 6 feet of 3/8 inch cable and try this procedure.

-Tom


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hershey

Albuquerque,(fulltime) NM, USA

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Posted: 06/09/11 04:33pm Link  |  Print  |  Notify Moderator

You may have indeed dumpted the black tank and your only blockage is the pipe directly from the toilet into the tank. A plumbers friend will prove this theory and free the clog.
If the tank is indeed clogged, you can get a cap that will twist onto the dump hose fitting and has a garden hose connection. Walmart will have it. Use it and gently apply backwards water pressure. Make sure that it doesn't overflow your toilet.
If that fails, the hose others have recommended to go into the tank is a good suggestion.


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checkmate

Jacksonville, FL

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Posted: 06/09/11 04:35pm Link  |  Print  |  Notify Moderator

This may help.

http://sites.google.com/site/cbruni/home

wolfe10

Texas

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Posted: 06/09/11 04:38pm Link  |  Print  |  Notify Moderator

checkmate wrote:

This may help.

http://sites.google.com/site/cbruni/home


Clickable: http://sites.google.com/site/cbruni/home


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96Bounder30E

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Posted: 06/09/11 04:52pm Link  |  Print  |  Notify Moderator

Get a flush king.......fill and dump until your holding tank dumps completely........




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old guy

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Posted: 06/09/11 05:39pm Link  |  Print  |  Notify Moderator

sounds to me you are not using enough water when using the toilet. they make a power wand with a hose on the end to put down toilets with a curve in the down pipe.

KarenInTheWoods

Wisconsin

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Posted: 06/09/11 06:28pm Link  |  Print  |  Notify Moderator

Our friends had a clog. They were lackadaisical about how they dumped or how much water was added to the tank after dumping.

Until they had a Black Pyramid.

They boiled five or six large kettles of hot hot water on the stove, and dumped them into the tank and let it set. Loosened things up and flowed again.

Now they are firm believers in leaving the black tank closed until 3/4 full and then pulling the lever with a good WHHOOOSSSHHH and rinsing again and again when done. And then adding 2 gallons to start anew.


Karen and Steveio
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Mergs

Sayville, NY, USA

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Posted: 06/10/11 07:48am Link  |  Print  |  Notify Moderator

Had trouble and went on line until I found this soulution. Turn off handle to black tank. Take the hose out of drain and hold it up above your head and fill with water from little hose. Have someone help you and hold up the middle of the fat line until the water backs up and hits the clog and quickly put the fat hose into the dump. It quickly emptied the black water. But my husband had filled the whole black tank before hand trying to unclog it. Hope this is understandable.

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