Waste water leak

[mackeellan]

Hi, i have a 2010 dethleffs i1. The problem i have is that the waste water from the bathroom sink leaks onto the internal floor area. I have traced the waste pipe to the top of the grey tank and it is bone dry. The grey tank appears to be under the vans internal floor level so the leak appears to be uphill! I cannot find where tbe sink waste enters the grey tank. The kitchen and shower wastes do not leak water inside the van. I have proven that it is the bathroom waste that leaks the water and not the pressurised side of things. Any ideas anybody, thanks

 

[Stealaway]

It could be any waste pipe joint. They don't seem to glue them.

 

[mackeellan]

Thanks alex, i will try to find them all if this rain stops.

 

[mackeellan]

Problem solved. Removed toilet and cut away some of the double floor to reveal a disconnected elbow. Any joints between the floors just cannot be seen! Hope nobody else has this problem. Regards Chris