OK I got it fixed.
Had my tech come to the RV and he followed the drain pipe towards the grey tank.
Right above the grey tank there was a junction of 3 drain pipes, kitchen sink, half bath sink, and bedroom sink.
Just below this junction the pipe was broken all around but still aligned with the lower half, so some drained into the grey tank some overflowed on to the top of the grey tank and into the water bay.
He replaced this pipe and put rubber connectors to each of the incoming drains to allow for flex.
We tested it and no more drain unto the ground.
Problem solved !!!!