Environmental Protection What happens if you pour antifreeze down the drain? February 4, 2026 by Tanp | Leave a Comment If you pour antifreeze down the drain, it can cause significant environmental harm and potential plumbing issues. Antifreeze contains chemicals like ethylene glycol or propylene glycol, which are toxic to wildlife and can contaminate water supplies. Proper disposal of antifreeze is crucial to protect both the environment and your plumbing system. Why Is Pouring Antifreeze […] Read more ยป