Quote Originally Posted by Roger Cole View Post
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.
Something I thought about last night as I was developing two rolls of Tri-X: When I pour stop bath down the drain it turns a little bit purple because of some of the remaining developer I just poured down the drain, 45 seconds ago.

Therefore, doesn't it stand to reason that the developer is neutralizing the stop bath? It would naturally be getting neutralized inside the J-trap before it ever gets to the sewer. Wouldn't it?

Further, if you wanted to make sure the stop bath was neutralized, you could pour developer and stop into a plastic tub, allowing them to neutralize before dumping the whole volume down the drain.

Problem solved, I suppose... Right?