Question about vent tubes

[PA BAMBI II]

I am planning to rework the interior layout of my tiny Bambi II and move the kitchen sink over to the street side. This would qualify that all water systems would be on the street side. Is it possible to tie the vent tube for the sink into the black tank vent?

Something tells me someone will tell me this will not work- but it seems to me that with a p-trap (or one of the modern p-trap replacements), odor would not be able to back track into the cabin.

For that matter- can gray tanks and black tanks share vent tubes? It would make the plumbing a bit easier- but I will be good regardless.

Thanks! Ben

[purman]

It will work. On my 68 the black and grey tank share same vent.