What kind of ring is it?
- White, grey or brown and crusty: hard water minerals, often stained by what sits on them. The most common, and the one this guide focuses on.
- Orange or reddish-brown: often iron in the water, which leaves rust-coloured deposits.
- Pink, grey or dark and slimy: usually bacteria or mould growth in damp areas. It wipes away with a regular toilet cleaner and a brush, and comes back if the toilet is not cleaned often.
For a quick version of the hard-water fix, and the same buildup on taps and shower glass, see our guide to removing hard water stains. This guide goes further for the rings that will not budge.
What you need
- White vinegar, or an acidic toilet bowl cleaner
- A toilet brush
- Rubber gloves
- Paper towels
- A pumice stone made for toilets (only for standard white porcelain bowls)
- A small cup or plunger to lower the water
Step by step
- Lower the water. Turn off the water supply valve behind the toilet and flush. The bowl empties down to a lower level. Or push the water down the drain with a few firm plunges, or scoop it out with a cup. Now the ring is exposed.
- Apply the cleaner to the ring. Pour vinegar or a bowl cleaner directly onto the ring. On the sides, press vinegar-soaked paper towels against the ring so the acid stays in contact.
- Let it soak. Give it at least 30 minutes. Overnight is better for a heavy ring. Follow the label time for a commercial cleaner.
- Scrub with the brush. Remove the paper towels and scrub the ring firmly.
- Use a wet pumice stone if needed, only on white porcelain. Soak the pumice stone in water first, keep it and the bowl wet the whole time, and rub the ring gently. The pumice wears down the mineral deposit, not the porcelain, as long as both stay wet. Rinse and check often.
- Turn the water back on and flush. Check the result and repeat on any remaining patches.
Never mix bleach with vinegar, acidic toilet cleaners or ammonia. Bleach and acids release chlorine gas, and bleach and ammonia release chloramine gas, and a toilet bowl is one of the most common places this happens. Flush and rinse between products. Use a pumice stone only on standard white porcelain, always wet: never on coloured fixtures, plastic seats, enamel, stainless steel, tile or any other surface, because it can scratch. Test any new cleaner on a small area first. Do not let vinegar or acidic cleaners drip onto natural stone floors or vanities, because acid etches them. Wear gloves and ventilate the room.
Common mistakes
- Scrubbing under water. The cleaner is diluted and never touches the ring. Lower the water first.
- Not waiting. Acid needs contact time to dissolve minerals.
- Adding bleach to make it stronger. This is dangerous with acidic cleaners and vinegar.
- Using a dry pumice stone, or using one on a coloured or non-porcelain fixture. It can scratch.
- Using steel wool or wire brushes. They scratch porcelain, and scratches catch stains faster.
What professionals use, and why
Washroom cleaners usually use an acid-based bowl cleaner for scale and rings, with a bowl mop or swab that pushes the water down so the cleaner works on the exposed ring. For hygiene, they use a disinfectant registered for the purpose and leave it for the contact time on its label, as a separate step. They never combine acid cleaners with bleach-based products. And they keep to a schedule, because a ring that is cleaned off weekly never gets the chance to harden.
Workplace washrooms
- Brush bowls daily in busy washrooms, and descale on a set weekly or fortnightly schedule.
- Watch rarely used toilets. A toilet in a quiet washroom often develops the worst ring, because water sits still. Flush it as part of the routine.
- Label and separate products. Keep acid bowl cleaners and bleach-based products clearly labelled and never used one after the other without a flush in between.
- Hard water areas build scale faster, so they may need descaling more often.
- Dingy grout around the toilet and shower brightens with a simple paste left to sit. See the overnight paste method for grout.
If the ring keeps coming back
Clean more often. A quick weekly brush with a bowl cleaner stops minerals hardening into a ring.
Look at the water. Very hard or iron-rich water builds rings fast. A water softener or iron filter addresses the cause.
Check for a running toilet. Water constantly trickling into the bowl leaves streaks and rings. A plumber or a replacement flapper often fixes it.
If the surface feels rough or looks dull after cleaning, the glaze may be worn or scratched. Worn porcelain stains faster, and cleaning will not restore the glaze.
Frequently asked questions
How do you remove a stubborn toilet bowl ring?
Lower the water by turning off the supply and flushing, or by plunging or scooping it out. Pour vinegar or an acidic bowl cleaner onto the ring, pressing soaked paper towels against it, and let it soak for at least 30 minutes or overnight. Scrub with a brush, and on standard white porcelain only, use a wet pumice stone for what remains.
Is a pumice stone safe for toilets?
On standard white porcelain bowls, yes, as long as the stone and the bowl are kept wet the whole time and you rub gently. Never use pumice on coloured fixtures, plastic seats, enamel, stainless steel or other surfaces, because it can scratch.
Can I mix bleach with toilet bowl cleaner?
No. Many toilet bowl cleaners are acidic, and bleach mixed with acids, including vinegar, releases chlorine gas. Bleach with ammonia releases chloramine gas. Flush and rinse between products.
Why should I lower the water level first?
So the cleaner sits directly on the ring at full strength. Under water, it is diluted and barely touches the deposit.
What is the pink ring in my toilet?
A pink or grey slimy ring is usually bacteria or mould growing where it stays damp. It wipes away with a regular toilet cleaner and a brush, and cleaning more often keeps it from coming back.
How often should workplace toilets be cleaned?
Busy workplace washrooms usually have bowls brushed daily, with descaling on a set weekly or fortnightly schedule. Rarely used toilets should be flushed regularly so water does not sit and leave a ring.
If it is a workplace washroom you are looking after, you can find out more on our janitorial services page, and get more practical tips like this through our free cleaning tips sign-up.