Properly disposing of water tests

This might be a stupid question, but I was unable to find any information in the instructions about properly disposing of the chemical water tests. (the PH, Ammonia, Nitrate etc) Does anyone know if the test renders the chemicals nill and im fine to just dump them down the sink or? Id imagine the ammonia wont hurt sewer lines but I have no idea what chemicals are in the other tests. 

I have always dumped them down the sink. There are WAY worse things that get dumped down the sink. The minuscule amount that we add isn't going to change things.

I agree with Ryan and others, I have always just washed it down the sink too, but is it just me or did anyone else feel a twinge of guilt when pondering that action?

Can one person make any difference? That reminds me of the Sea Star story. The person that tossed one Star back into the ocean made a difference for that one Star and also made a difference in their own life. Those that care will change the world, not alone but together.

How do the reagents react in the sewage system? I don't know, but I would like to.

I used to dump used engine oil in a spot in my backyard and sometimes in the gutter. I didn't know how much damage I was doing until, as a High School student in 197O, some friends and I did a video project about pollution. We visited the oil laden canals that dumped into the Jordan River and videotaped the barren hills denuded of vegetation near the Kennecott Smelter. The difference we made may not have been great, but it made a difference to me and the combined outcry of many people is what taught responsibility to the individuals like myself and to the companies that were dumping these chemicals into the environment.

As a country we formed the EPA (Environmental Protection Agency). It made a difference. Streams and lakes that were once polluted and dead or polluted and overgrown with algae blooms were eventually transformed. Life recovered and those same streams and lakes are beautiful once more. People pick up their trash more now than ever, keeping roadways and waterways more pleasant. We drive cars fitted with pollution reduction devices. Yes, I know that TOGETHER WE CAN MAKE A DIFFERENCE.