Flush Tank Not working

[djac13]

hey ya'll

I hook up my water to the flush tank input and turn the water on. I have the blank and grey tank valves open so water should flow but nothing happens.

Any suggestions and tips on what's going on and how to fix it? and where is the water going?

[chuckster57]

Tank flush is for the black tank. Can you hear water running? If not then I would look for the anti siphon valve. Favorite places are under the bathroom sink and inside the wall behind the shower.

Did it ever work?

[sourdough]

As Chuck said, the flush is for the black tank. You should be hearing a "buzzing", "whirring" noise if it working. If not the anti siphon is defective. Best case scenario is that it is just not passing water (or it can back up upon connection and shower you when it's 30 degrees) or it can just back up and leak water into the trailer. If you don't hear those noises the water isn't going anywhere...it is blocked.

[djac13]

I don’t hear the water, I’ll looking for the anti siphon valve. When I find it, any suggestions on what to do?

Yes, at one time it worked great.

[djac13]

Hey, I have two black tanks, and only one black flush tank isn’t working. So I assume there are two separate anti siphon valves, is that correct usually?

[chuckster57]

Originally Posted by djac13

Hey, I have two black tanks, and only one black flush tank isn’t working. So I assume there are two separate anti siphon valves, is that correct usually?

Only if you have 2 separate hose hookups.

[RickV]

While I can hear my Black Tank Flush running I also use a clear flush adapter so I can see when the water is flowing.