What must be ensured when disposing of old brake fluid?

When disposing of old brake fluid, it is crucial to follow hazardous waste protocols because brake fluid is considered a hazardous material due to its chemical properties, which can be harmful to the environment and human health. Brake fluid often contains glycol ethers, which are toxic and can contaminate water supplies if not disposed of properly.

Discarding brake fluid in accordance with hazardous waste protocols ensures that it is handled and processed in a manner that mitigates environmental risks, following local regulations and safety guidelines. This typically involves taking the fluid to a designated waste disposal facility equipped to manage and treat such hazardous materials safely.

In contrast, options like pouring brake fluid down the drain, throwing it in regular trash, or mixing it with water do not mitigate the risks properly and can lead to pollution and environmental harm. Proper disposal is vital for public health and environmental conservation.