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BLACK TANK FLUSHER

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Joel Ashley:
Reckon if there's another opening on the black tank besides the outlet and inlet, and maybe a spray rinse system and a vent, then I'm ignorant of it.  But he didn't say "flush valve".  I'm still thinking he's simply talking about having trouble getting sewage to flow out of the tank upon dumping.

Clear it up for us George.

George Harwell:
Sorry for the confusion. I am referring to the black tank flusher, not the drain valve. Joel, went thru your blocked drain situation 4 years ago and the 3 inch cutout was the culprit. Hope this clears things on this subject.

Joel Ashley:
OK.  Reckon I'll admit error on this one  :B, cuz by flusher you must mean the tank rinsing system.  Given that, I spose the problem could be a faulty vacuum breaker, or partly closed/jammed check valve downstream of it, but the spray nozzle(s) in the tank can become clogged if not regularly used, preferrably with each tank dumping.  Swan Industries in Bend may proffer some guidance:

sales@swanindustries.com
 
1-800-228-7926

-Joel

Tom Rogers:
George .... I don't have an answer but have a suggestion. Locate the tubing/pipe that goes into the black tank. Beginning at the tank un-hook/un-clamp and see if you have sufficient water pressure coming to the tank. If not continue work back up to the source. There might be a check valve in the system somewhere to prohibit black water from working it's way back into the water supply.

GO DUCKS !!!!!!!!!!!!!!!

George Harwell:
Good news. I removed the glued in flusher on the black tank and found the gecko's (little lizzard) tail.Pulled the washer/dryer out to gain access to the anti-siphon valve,removed it and found the rest of the remains inside. Wasn't smelling very good. Had to order a new flush valve, luckily Bend parts had one. Also installed a screen on the inlet. Thanks to all for the help.

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