Hello, I'm doing an experiment for a science fair and I would like to know if you could tell me what is the general ingredients in drain cleaner and/or toilet cleaner. I trying to find out the affects of drain cleaner and toilet scrub on the environment.

Of course, you can just give me a website that you've found. :) Either way works.

Thank you!

learningizkool

The main ingredient in drain cleaner is caustic soda.
The main ingredients in toilet cleaner are bicarbonate of soda and bleach.
;)