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 toliet cleaner. I trying to find out the affects of drain cleaner and toliet scrub on the environment.

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

Thank you!

learningizkool

Credendovidis

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