---
title: "Where do Bleach, drain cleaner and household chemicals go? Haz"
description: "Use them up as directed if you can. Anything left over goes to hazardous waste, in its own container. Why that route, what goes wrong on the wrong one, and how to pr"
url: https://atoneplace.net/where-does-it-go/household-cleaners/
site: "At One Place"
---

# Where do Bleach, drain cleaner and household chemicals go?

**Where do Bleach, drain cleaner and household chemicals go?: Use them up as directed if you can. Anything left over goes to hazardous waste, in its own container.**

Hazardous waste collection

Diluted household bleach used for its intended purpose ends up in the sewer anyway and is dealt with by treatment; the problem is quantity and mixing. Bleach and any acid — including limescale remover — produce chlorine gas, and bleach with ammonia produces chloramines, both in the confined space of a sink or a bin. Caustic drain cleaner poured into a bin bag burns through the bag and then through whatever it lands on. Use products up, keep them in their own labelled containers, and take the remainder to a household hazardous waste collection. How your area runs hazardous waste collection — a site, an event, or a booking — is worth knowing before you need it.

## How to prepare it

1. Use up as directed rather than disposing, where that is possible.
2. Keep the original labelled container and the cap.
3. Take unused concentrate to a hazardous waste collection.

## What not to do

- Never mix bleach with acid or ammonia cleaners — that reaction makes chlorine gas in the room you are standing in.
- Never pour drain cleaner into a bin; it burns through the bag and injures the crew.

> Kerbside collection rules genuinely vary by council and county, and local rules always win over general guidance. The reasoning above is what transfers — if your service differs, it will usually be for a reason described here.

## Other things that go to hazardous waste collection

- [Paint thinner, white spirit and turpentine](https://atoneplace.net/where-does-it-go/paint-thinner/) — Hazardous waste collection. Flammable, and lethal to a septic tank or a river.
- [Pesticides, weedkiller and insecticide](https://atoneplace.net/where-does-it-go/pesticides/) — Hazardous waste collection, in the original container with the label intact.
- [Asbestos](https://atoneplace.net/where-does-it-go/asbestos/) — Do not break it, do not drill it, do not sweep it. It needs a licensed route, and most household waste centres take it only by prior arrangement.
- [Old petrol and diesel](https://atoneplace.net/where-does-it-go/petrol/) — Hazardous waste collection. Stale fuel is still fully flammable.
- [Mercury thermometers and thermostats](https://atoneplace.net/where-does-it-go/mercury-thermometers/) — Hazardous waste. Never in a bin, and never vacuum a spill.
- [Antifreeze and screenwash](https://atoneplace.net/where-does-it-go/antifreeze/) — Hazardous waste. Ethylene glycol tastes sweet and kills cats, dogs and children.
- [Fertiliser, lawn feed and pool chemicals](https://atoneplace.net/where-does-it-go/garden-chemicals/) — Hazardous waste. Oxidisers and concentrated fertiliser are reactive, not just polluting.

## Common questions

### Where do Bleach, drain cleaner and household chemicals go?

Use them up as directed if you can. Anything left over goes to hazardous waste, in its own container.

### What happens if you put Bleach, drain cleaner and household chemicals in the wrong bin?

Never mix bleach with acid or ammonia cleaners — that reaction makes chlorine gas in the room you are standing in. Never pour drain cleaner into a bin; it burns through the bag and injures the crew.

## Related pages

- [Where do Paint thinner, white spirit and turpentine go?](https://atoneplace.net/where-does-it-go/paint-thinner/)
- [Where do Pesticides, weedkiller and insecticide go?](https://atoneplace.net/where-does-it-go/pesticides/)
- [Where do Asbestos go?](https://atoneplace.net/where-does-it-go/asbestos/)
- [Where do Old petrol and diesel go?](https://atoneplace.net/where-does-it-go/petrol/)
- [Where do Mercury thermometers and thermostats go?](https://atoneplace.net/where-does-it-go/mercury-thermometers/)
- [Where do Antifreeze and screenwash go?](https://atoneplace.net/where-does-it-go/antifreeze/)
- [Where do Household batteries (AA, AAA, C, D, 9V) go?](https://atoneplace.net/where-does-it-go/batteries/)
- [Where do Lithium-ion batteries go?](https://atoneplace.net/where-does-it-go/lithium-batteries/)
- [Where do Vapes and disposable e-cigarettes go?](https://atoneplace.net/where-does-it-go/vapes/)
- [Where do Medicines and tablets go?](https://atoneplace.net/where-does-it-go/medicines/)
- [Where do Pizza boxes go?](https://atoneplace.net/where-does-it-go/pizza-boxes/)
- [Where do Leftover wet paint go?](https://atoneplace.net/where-does-it-go/paint-wet/)

## Sources

- US Environmental Protection Agency — EPA (https://www.epa.gov/) [Public domain (US Government)]