Flush

[greg&bev]

Quick question,on my fifth wheel I could hear the black tank flush when hooked up,on my hurricane 35 m I can’t hear the flush and it seems like water is not flowing out like my old rv. Are flush systems different? It seems like I’m not flushing? Thanks

[Popfla]

Chances are good the vacuum breaker/check valve on the black tank flush system either (1) was installed backwards, or (2) is defective. There's been many reports of the valve being installed backwards.

[macdaddy1111]

Originally Posted by greg&bev

Quick question,on my fifth wheel I could hear the black tank flush when hooked up,on my hurricane 35 m I can’t hear the flush and it seems like water is not flowing out like my old rv. Are flush systems different? It seems like I’m not flushing? Thanks

We have 35m 2020

You will hear it spaying at either black tank and you should see plenty of water draining if you have your valves open.

[greg&bev]

ill listen closer it just seems like no or very little water coming out, ill also close the black valve for a while and see if i get water in the tank.

[Judge]

Originally Posted by greg&bev

ill listen closer it just seems like no or very little water coming out, ill also close the black valve for a while and see if i get water in the tank.

The “flush” on its own is farily worthless. I use it to fill the tank 80% with water and then open the valve to let it “flush” the debris with the water that way. Works much better than on its own.

Close your valve, start the water and wait 5 minutes. Then open the valve. If you don’t have several gallonyof water and debris coming out, your vacuum breaker is backwards.

[greg&bev]

thanks ill try that,its both black tanks i would hope they couldn't get them both backwards, and i agree i used to stick the hose in the toilet that worked great.