Which holding tank does my sink and shower drain to and what kind of “trap” does it have?

In the G/GL both the galley and bathroom sinks drain to the Gray tank and both sinks (and the shower) have “waterless” traps.

In the K/KL the galley sink drains to the Gray tank and the bathroom sink drains to the Black tank.

In the K/KL the galley sink (and the shower) have “waterless” traps and the bathroom sink has a “P” trap.

In all Travatos the shower drains to the Gray tank and has a “waterless” trap.