Drain valve

[Gizmosp641]

Holding tank drain on 2017 flying cloud. White valve between tires not dumping any water ???

[GCinSC2]

Your trailer has several drains and a few hoses that can look like water should come out of.

Specifically which tank are you trying to drain?

Any chance for a pic?

Are you new to this trailer or is this a new it ain’t working issue?

[CBWELL]

That "should" be your fresh water holding tank drain. If nothing comes out, it possibly is empty. You can also use a compressor and blow air up into the tank to possibly dislodge an obstruction. Make sure that your tank fill cap is off to prevent any chance of pressurizing the tank.

[GCinSC2]

IF it is the fresh tank you are trying to drain, that white plastic handle. Turn it 180 degrees.