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Old 10-04-2017, 09:56 AM   #1
2 Rivet Member
 
2010 27' FB International
La Crescent , Minnesota
Join Date: Feb 2007
Posts: 96
Black tank flush plugged

The flushing system on our 27' FB is not operating.
I have gone into the closet and removed and verified that the check valve is working properly.
Next I completely filled the black tank with a mixture of 3 gal of vinegar, a cup or so of Calgon, a cup or so of Borax, and water. This was to cause any solids that might be on the spray nozzles to dissolve.
The next step was to spray a product called Dissolve IT down the pipe in the closet that supplies the spray system in the tank.
Finally I blew air from an air hog into the pipe after letting everything sit for a day or so.
The air did seem to go through although not as rapidly as I expected it should if the system were clear.
After letting it sit another day The air is unable to move the the system.
I am stumped!
Anyone else encountered this?
I would be grateful for any thoughts.
Jay Jensen
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Old 10-04-2017, 10:21 AM   #2
Half a Rivet Short
 
2017 30' Classic
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 5,193
Hi

The holes in the "wand" are pretty small. Hook up to a water source that has "crud" in it and you might plug things up. If so, you want to use something designed for hard water deposits and "scale" to get rid of the stuff. Of course if it's sand .... that will not work either. I'd at least give it a try. You want the "industrial strength" version and not the "environmentally approved" stuff .... Plumbing department at Lowes or Home Depot is your friend in this case.

Bob
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Old 10-04-2017, 10:31 AM   #3
2 Rivet Member
 
2010 27' FB International
La Crescent , Minnesota
Join Date: Feb 2007
Posts: 96
Thanks Bob!
i will give it a try.
Jay
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