If you drink it, maybe. Once it goes down the drain, plenty of stuff down there will oxide the pyrocatechol. It'll be virtually harmless and since the volume of film developer discarded is generally far smaller than paper developer anyway, it's even less of a concern.
Issue is more so that it oxidizes the pipes, and the day after i poured a used batch down my landlord emailed the building asking folks to "please not use drain cleaner"
Issue is more so that it oxidizes the pipes, and the day after i poured a used batch down my landlord emailed the building asking folks to "please not use drain cleaner"
And then only if the landlord has some extraordinary sampling and testing equipment.
One of your neighbours probably dumped something else down the drain like drain cleaner or household bleach.
Issue is more so that it oxidizes the pipes, and the day after i poured a used batch down my landlord emailed the building asking folks to "please not use drain cleaner"
One flush of the toilet would whisk away any developer you poured down the drain. It's nowhere near as caustic as drain-cleaner (sodium hydroxide), anyway. The danger that poses is when it sits in a trap and has a chance to work on the pipe.
My bad, I meant Ilford Multigrade developer. Ilfosol 3 is, of course, a film developer (No, only use Ilfosol 3 as a one-time film developer and keep the stock in a brown bottle.) Multigrade stock seems to last as well, at least for the time it takes me to use the entire bottle. I've achieved the same longevity results with Ilford PQ Universal.