Darkroom water, grey water, black water

[JOSarff]

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.

Thoughts?


Thanks in advance,

Joe

 

[joh]

In my opinion it is gray water, the biggest part of the chemicals should be gone after a rinse. Ok I would not drink it, but for a toilet or so,
it should be fine and I think it is a good idea to use it again before you waste it....

regards hans

 

[tkamiya]

If you are talking about wash water, not the actual solution, the concentration of active ingredients are VERY low.

If you are implementing a system, why not ask the manufacturer of the system and find out if the system is capable of handling/treating low concentration of chemicals involved?