Over the years I have seen lots of threads on how to get rid of or how to try and recover spent ferric chloride. I found a video on how to do and have no waste product! I admit unless your into chemistry some of the equipment would need some bodging, but I thought it might be useful. I will use this method in the future.
The hydrochloric acid mentioned in the video is already in the solution and isnt something you add, just in case people think you need to add acid
The hydrochloric acid mentioned in the video is already in the solution and isnt something you add, just in case people think you need to add acid