Bleach is a powerful, toxic substance that should be used carefully and properly, and pouring it down a drain is not a proper use. Bleach can react with other substances in your pipes, potentially release fumes, and further plug up the system. Pouring bleach down them will do much more harm than good.
Consequently, can you wash bleach down the drain?
Open the tap, and pour the bleach down the sink. You can dispose of small amounts of bleach in the sink as long as the bleach is diluted by the running water. If you have large amounts of bleach to dispose of, call one of these companies to help.
Can bleach dissolve hair in drain?
The neutralization reaction between an acid and a base produces a salt and water. Bleach can dissolve any fiber that has acidic properties. Next time you have a bathroom sink, shower, or bathtub draining slow try pouring a cup of liquid bleach into the drain. Bleach dissolves hair and it takes a bit of time.
Can you put hair bleach down the drain?
Hair bleach is not as corrosive as over-the-counter liquid drain cleaners (which you honestly should never use), and it's not even as strong as bleach that you use to clean your bathroom. You also get the added benefit of cleaning out any mildew or bacteria if you flush leftover hair bleach down the bathroom sink.