Where do you find drains? You find them in kitchens, bathrooms, and laundry areas. In your kitchen, you prepare food and drink for your family or customers. You certainly don’t want chemicals and the chemical smell in these areas – you want something that is safe and “green”. You also don’t want contamination from chemicals in these areas, even though most chemicals are supposed to be safe for humans and pets.
Chemicals used in the laundry room usually don’t have contact with human food and water, but you do want to watch out if you feed pets in these areas.
In the bathroom, you know you brush your teeth in the very drains to which you have added chemicals. You also bathe in the showers and bathtubs that have drains treated with chemicals.