Today's question: What household chemicals can I safely pour down the sink or into the toilet?
Plain Talk answer: Before you think about what you can throw away, think about what you are buying. Start by buying environmentally friendly products whenever possible. Next, try to buy just what you need so you won't have any or much left to dispose of. Finally, check with you local solid waste department or similar agency to learn of local rules and hazardous waste collection days. In Canada, the local sewer-use ordinances control disposal in most municipalities.
If your home is on a public wastewater system, these liquids can safely be poured down a drain at a time when you have using a lot of water (such as washing clothes) to help dilute the wastes:
Toilet bowl cleaners
Tub and tile cleaners
Paintbrush cleaners with trisodium phosphate
Lye-based paint strippers
After disposal, be sure to rinse the empty container with water several times. Of course, the safest course of action is not to put anything in your sink or toilet. Other wastes should be disposed of by following your local municipality's hazardous waste collection process.