Where To Dispose Of Api Kit Results?

HI all, I just received the API master test kit in the mail today, and after reading I’m starting to wonder how I should get rid of the results? I was thinking dump them down the drain but I think one says corrosive to metal.. and the another says do not release into the environment, so I can’t dump them outside in the gravel... what do I do with them? Any answers are appreciated!!!!!

 

And by results, I mean the water that has changed color already because of the chemicals you put in it.

 

I dump mine down the sink, but run water while you're doing it to dilute it. Most pipes are PVC now anyway

 

I do the same, I dump it into the sink.

 

Agree with above, wash down some water first then the chemicals.

 

Alright, thanks!