Stubborn Toilet Deposit

[Rincewindwiz]

Hi All,

Had a badly limestone scaled toilet - especially and under the rim.

Removed most with Killrock and Spirit of Salts no problem.

Now left with a very hard rough thin pale grey deposit between the holes and the inside edge of the rim which I cant shift.


Any suggestions on what it is and how (preferably chemically) I might shift it?

 

[Chuck]

Are you sure that's a limescale deposit and not an unglazed area? Is the area visible in normal use? If not, leave it, nobody sane is going to be sticking their head down your loo to inspect your rim...

 

[centralheatking]

There are those yellow sugar like crystals that dissolve limescale
which turn green when done, ideal for kettles as well use warm water or even boiling chking

 

[ShaunCorbs]

Would say that’s unglazed area

 

[marvoni]

Wow, spirit of salts is very strong and dangerous if not used correctly, I'm surprised it's even readily available in the UK. It will dissolve cement, concrete and brick and I'm guessing it might even attack the glaze if it was used too concentrated or left too long.

 

[townfanjon]

Wow, spirit of salts is very strong and dangerous if not used correctly, I'm surprised it's even readily available in the UK. It will dissolve cement, concrete and brick and I'm guessing it might even attack the glaze if it was used too concentrated or left too long.

I buy it from the local hardware store lol

 

[Welder]

Would say that’s unglazed area

Def unglazed. 100% perfect call Shaun

 

[Deleted member 96286]

Just buy a Cramer ceramic repair kit and use it to paint over the enamel.

 

[Rincewindwiz]

I was coming to the 'unglazed' conclusion except I cant figure why. Its not like its regular or anything and why would it be unglazed?. And why a narrow irregular strip? And why next to the water outlets which has to make it easier for limescale to form?

I'm really only interested in fixing it in case my Mother-in-Law springs a surprise inspection (that was a joke )!

So, in the absence of any other suggestions I think I'll go for the 'patch it and forget it' solution with a Cramer Ceramic repair kit

Thanks to all

(32% Hydrochloric acid - very nasty stuff - is available for around £4/litre from my local hardware store!)