black/grey flush

[jonm]

I have a 2006 16ft bambi. I can't get the black/grey tank flush to work. When I hook up the hose to the flush and turn the water on, it seem like there is some type of blockage. Do I need to keep the water running longer before it opens to my tank or what? Help! thanks

[TBRich]

Hey Jon...Welcome to the forums!

You should be able to hear the water spaying the inside of your holding tank immediately ... without any wait. It sounds like there is some sort of blockage that is not allowing the water in. (You do have the hose hooked up to the flush inlet and not the fresh water fill inlet, right?)

[Wingeezer]

Could it be that there is some sort of back flow preventer that is stuck and not alllowing water to pass?

Just a thought ......... Brian.

[jonm]

I believe the line to the tank is clogged.

[RLS]

Since we have owned this trailer, the black tank flush has not worked. I've tried everything possible to fix it. Replaced the back-flow valve, filled the tank up several times with different additives, letting it sit for weeks full with additives, blowing it out with air pressure and adding bags of ice cubes after emptying and then travel to next site. Natta! nothing worked. I've installed one of those wands that has a shut off on it. I was able to cut a hole for the hose inside the refrigerator compartment wall. ran the hose from there to the wand so all I have to do is open the outside ref. door and connect the hose. I then made a bushing to go inside the head to keep the valve open and it also serves to keep the water from splashing back out by the inside hole of the bushing being just big enough for the wand to go in.