I'm putting in an outdoor bbq that will also have a bar with a small sink. But the sink will be VERY basic: cold water only and almost exclusively for filling cups for a quick swig of drinking water and rinsing drink cups.
There will be no actual cup washing (as in with soap), no dish washing (again, no soap, and no food particles), etc. There will be pretty much just water, ice (more water!) and some bits alcohol and juice 'runoff'. Even then, anything substantial will go in the regular sink indoors.
Knowing all this, aside from any zoning laws is there any reason I need to put this into my DWV system versus just running it into filtered gray water pit of some sort? My preference is the latter. Because of where the bbq and sink will be located, it will be far more convenient to just have it drain out into "nature". 99% of what goes out will be water and aside from some vodka or beer residue, there's not gonna be any harsh stuff coming out? And I'll be feeding into a bed mostly iceplant-type foliage... the stuff is hard to kill. And any reason I'd need a normal trap at the sink or would an elbow out to a horizontal pipe suffice?
There will be no actual cup washing (as in with soap), no dish washing (again, no soap, and no food particles), etc. There will be pretty much just water, ice (more water!) and some bits alcohol and juice 'runoff'. Even then, anything substantial will go in the regular sink indoors.
Knowing all this, aside from any zoning laws is there any reason I need to put this into my DWV system versus just running it into filtered gray water pit of some sort? My preference is the latter. Because of where the bbq and sink will be located, it will be far more convenient to just have it drain out into "nature". 99% of what goes out will be water and aside from some vodka or beer residue, there's not gonna be any harsh stuff coming out? And I'll be feeding into a bed mostly iceplant-type foliage... the stuff is hard to kill. And any reason I'd need a normal trap at the sink or would an elbow out to a horizontal pipe suffice?