Confirm the product is labelled for the intended toilet surface
Read the full directions and warnings on the exact container. Confirm the product is intended for the toilet bowl and any surfaces you plan to clean; do not assume the same formula suits seats, hinges, seals, metal or surrounding finishes. Follow only the stated amount, application, contact time and rinse directions.
Never mix bleach with another cleaner
Use one product at a time and do not combine bleach with toilet cleaner, acids, ammonia or any other chemical. NSW Poisons Information Centre advises using cleaning products in a ventilated area and not mixing chemicals; read the product label and keep people and animals away as directed. Read its cleaning-product safety guidance.

Protect surfaces and follow the stated precautions
Use ventilation and any protective equipment specified on the label. Do not transfer the product to an unlabelled container or use more than directed. If the toilet material or previous cleaner is unknown, pause and check with the product maker rather than layering products.
Choose another method when the label does not fit
If the product is not labelled for the surface, the fixture maker advises against it, or you cannot confirm what was used previously, choose a compatible labelled toilet cleaner or ask the relevant manufacturer. Stains, scale and discolouration may need different products; stronger bleach is not automatically more appropriate.



