Black water flush

[macAIR77]

Our flush tank seems to be blocked.. is there a valve to open /close easily?

[wulfraat]

huh? "flush tank" ?

[pcskier]

Sorry, need clarification in order to help.
Do you mean that when you try to empty your black tank, nothing comes out...or
Do you mean when you hook up a hose to the black tank flush fitting to flush the tank...no water flows into the flush system...or
Something else? What exactly are the symptoms you are experiencing?

[uncle_bob]

Hi

Three possible things here:

1) Black tank is clogged and will not empty. Simple answer = two or three bags of ice down the toilet and a few loops around the bumpy park roads.

2) Black tank flush system is clogged and no water flows. First answer = same as 1 above. Second answer fill black tank with water and let it sit for a day. Try the flush again.

3) Gray water tank is blocked. That's a strange one ....

Always double check your tank valve arms. They *can* come unscrewed. If that happens, they slide very easily. In some cases they come all the way out ( = they extend much further than they should). Answer there is to screw them back into the valve paddle.

So - what is the issue in this case?

Bob