Using the factory Black water flush

[dlee]

So I think I know how this works, I am assuming after you dump your Black tank, then your gray tank, to clean out the hose, you can use this factory flush to do a flush on your black tank?
Any advice on this? Its on my sunset Trail 2010 19CK

[DavisK]

This is the method I use to flush my black tank...

https://www.youtube.com/watch?v=I6sv4d3PsTo

[harley]

Before you try to use it ,go under the bathsink and locate the aerator and tighten the 2 fittings real tight. And have someone watch it as you put water pressure to the hose to make sure it does not leak like most do.

[Donjamin]

I drain and flush my black tank first. I picked up a clear plastic elbow connection that hooks the drain hose to the drain valve. That way I can visually see that my black tank is washed out and flowing clear water from the black tank. I then drain my gray tanks and you can see that they are drained too.

D.

[Robb]

Originally Posted by Donjamin

I drain and flush my black tank first. I picked up a clear plastic elbow connection that hooks the drain hose to the drain valve. That way I can visually see that my black tank is washed out and flowing clear water from the black tank. I then drain my gray tanks and you can see that they are drained too.

D.

I do the same. The water that you flush from the black tank will always be contaminated. I like the fact that the grey tank has some detergent in it.

[Papa-T]

I close my grey tank. Open the black and let it drain while I hook up the hose to the flush. Turn on the flush till it comes out clear. Then I leave the flush on and close the black and let it fill for about 5 minutes. Then open it again. Turn off the flush. Let it drain. I turn on the flush again and see what comes out through the clear elbow. I will continue to close/fill and flush several times until nothing else comes out.

[Smokinjoe]

I follow Pappa Ts method . Works great

[Kamper Dave]

Under the bathroom vanity we located the Black Water Flush Systems check valve / vacuum breaker. Not wanting to take a chance on a leak or a flood we moved it to the basement ceiling behind the plumbing panel. It works fine there and has done so for the last 8 years.