Quote Originally Posted by Worker 11811 View Post
By the way...

Kodak Publication J-300 - "Environmental Guidelines for Amateur Photographers."

Developers and wash agents may be discharged to municipal sewer systems in moderate quantities without fear of harm.
Acid stop baths may be discharged if neutralized with sodium bicarbonate (baking soda) first.
Fixers may be discharged AFTER silver has been removed.
Exotics such as Selenium should NOT be discharged.

I take the extra step of turning in my spent fixer after desilvering but I don't neutralize stop bath so, according to Kodak's recommendation, I guess I'm about on par or a little above.

[Runs to the kitchen to find the baking soda.]
Neutralize stop bath?

Do you neutralize salad dressing before you pour it down the drain? Working strength stop bath is about as acidic as a 1+1 dilution of vinegar. In fact you can just use white vinegar 1+1 with water if you want, or run out of stop bath and have vinegar.