Black limescale mark in toilet

moneysaverz83

I noticed a random black mark below the water line.
Being paranoid, I thought it was blood and I had bowel cancer:(
A quick search shows it's limescale probably?:eek:
Anyway, tried pouring bleach and toilet duck overnight, no success.
Just tried soda crystals and hot water, no success.

Any other tips for this unsightliness

maisie_cat

Spirits of salt or white vinegar will dissolve it. Be very careful with spirits of salt!

rach_k

Have you tried scrubbing it?

Aylesbury_Duck

A bottle of cheap cola in the pan overnight will probably shift it.

tacpot12

You might need to get down the pan with a scraper, just use a metal one; you need a hard plastic one.

I've also had success with bleach (it doesn't dissolve the limescale but does bleach the mould that has attached itself to the limescale).

I've also had success with limescale removal tablets that you drop into the bowl and leave overnight. I think Harpic and Parazone are the brands I've used.

coffeehound

tacpot12 wrote: »

I've also had success with limescale removal tablets that you drop into the bowl and leave overnight. I think Harpic and Parazone are the brands I've used.

Yes a couple of the harpic ones left in overnight or longer worked well for mine -- they can be found in bargain shops.

moneysaverz83

Thanks! Don't really want to get scrubbing so will try every avenue. Will get harpic power plus tablet

Aylesbury_Duck

Be careful mixing products. Bleach products will react with acidic products and can give off dangerous gases. Try one method at a time and flush the toilet between them.

The cheapest one to try first is a bottle of value cola overnight - probably less than 50p. If you have stains above the water line, soak tissue with the cola and stick the sheets to the pan.

Silvertabby

Armed Forces married quarter march in/out tip:

Box of Oust (or similar) washing machine descaler. Mix both packets with a half bucket of warm water . Tip down the loo and leave for as long as possible - overnight if you can.

Callie22

The black harpic is very good for limescale. It might take a few goes but it's the only thing that shifted the limescale in our loo when we moved in.

that

maisie_cat wrote: »

Spirits of salt

This works wonders, on the back limescale ring I had when I moved in but do not breath in the fumes. Once most of it has gone you can use the other suggestions. My ring was a build up over ages and took nearly two 500ml bottles to shift it