At the risk of beating a dead horse I would like some advice.

I am building a new home that will incorporate a grey/black water waste system.

I have been using a septic tank for over 12 years with no problems, so my question is this: Would you classify the water from a final print washer (after selenium toning, rinse, PermaWash or KHCA and a rinse) as grey or black?

I lean toward grey, GF leans toward black.


Thanks in advance,