Grey water drain

[AdrianCaltieri]

In our T5 Cali the drain keeps blocking, I have tried boiling water and detergent down sink and attaching hose pipe to outlet to send water "wrong way". Does anyone know Is the "Port hole" in the grey water tank under the sink actually for inspection and can it be unscrewed, I don't want to try, and damage it for obvious reasons. We did buy it second hand so suspect fat or food debris was allowed to get into it. Any ideas gratefully received. Adrian

 

[westfalia]

Have a look here at post #18, that could do the trick.

Grey water tank drain issue

Hi all. In New Zealand the waste has to be emptied using a hose and external valve. The issue is that the pipe leaving the van is also the breather for the tank. When the external valve is closed the tank can not breath and the sink is even slower to drain. Has anybody fitted a separate breather...

vwcaliforniaclub.com

 

[SusiBus]

Sorry can't help about any means of inspection. Would it be an idea to consider just replacing the drain tube? Horrible old muck, eurgh!
Is there a smooth tube availible?
We never put anything into the grey tank if we can help it, but then we usually wild camp, so there's always a hedge available.

 

[AdrianCaltieri]

Have a look here at post #18, that could do the trick.

Grey water tank drain issue

Hi all. In New Zealand the waste has to be emptied using a hose and external valve. The issue is that the pipe leaving the van is also the breather for the tank. When the external valve is closed the tank can not breath and the sink is even slower to drain. Has anybody fitted a separate breather...

vwcaliforniaclub.com

Have a look here at post #18, that could do the trick.

Grey water tank drain issue

Hi all. In New Zealand the waste has to be emptied using a hose and external valve. The issue is that the pipe leaving the van is also the breather for the tank. When the external valve is closed the tank can not breath and the sink is even slower to drain. Has anybody fitted a separate breather...

vwcaliforniaclub.com

Thanks but it is between the tank and the outside where I suspect the problem is, the sink drains ok.

 

[westfalia]

If you remove the cover where the tap is you should be able to
access the drain pipe.

 

[Chrismat]

So yes the inspection port does screw open with a bit of effort. You do not want to open it if the tank is full otherwise the van will flood with smelly water! You can't see much once its open but there is enough room to put a phone in a take pictures and get an idea what's going on.
I managed to unblock mine without opening it.