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  #21  
Old 28.07.2008, 10:03
vwild1
 
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Re: Serious Limescale build up on a loo

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You sound as if you have experience of sanitary fittings - what would you suggest to the OP?
Vinegar but it's already been suggested, it's also about 1/10th the price of Durgol Surface. Any scraping that needs to be done should only be done with plastic tools (which he already appears to be doing). Heavy build up as illustrated in his attached photo isn't going to come off in one go, it will take repeated treatments before it's completely removed.
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  #22  
Old 28.07.2008, 17:53
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Re: Serious Limescale build up on a loo

VIM, which is powder in a bottle you can get at Coop. Sounds weird, but it is calcium carbonate, in other words, too soft to scrape the porcelain, but hard enough to get rid of its brother calcium carbonate crystals. Apply it on a damp cloth, and rub it off. It does work, might take a while though if it is that thick .
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Old 29.07.2008, 22:46
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MrLoo comes clean.

I have a confession. I am in fact MrLoo. Multiple IDs are against forum rules so I apologise for any confusion!

The good news is that the loo is cleaning up far easier than I expected. Almost no work, and a lot of fun. One very large sized balloon (so it is thicker and stronger), inflated only slightly to about 1.25 times the size of the hole under water, pushed into the hole. A small Ikea plastic kids bowl pushed on top, bowl pushed down by a bungie and a vacuum cleaner tube. This pressure is needed to squash the balloon to the square shape of the hole and create a good seal. A string on this first balloon in case it goes in too far! 3 further balloons filled with water then placed in the bowl to reduce the volume. 4x 1 litre bottles of cheap white vinegar from Denner poured in. 30 odd hours later, bubbles are still rising off the limescale. A slight poke with a wooden stick, and the limescale just crumbles. Here are pics of the complete assembly, and part of the back of loo showing through the vinegar where it was poked with a stick! The light is shining on a smooth part of the newly exposed porcelain. Thanks Enaj, for being first to suggest the vinegar idea.

The other approach using commercial cleaners, had balloons popping and splashing nasty chemicals about the room. Far too dangerous, expensive, and it was perishing the balloons before it had time to attack the limescale. You always have to protect your eyes, even with vinegar, as it is an irritant.
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serious-limescale-build-up-loo-looassy.jpg   serious-limescale-build-up-loo-disolving.jpg  
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  #24  
Old 09.01.2020, 16:14
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Re: Serious Limescale build up on a loo

I have had this issue for years with our toilets in Wallisellen. Until today, the only solution I had was professional cleaning. But for anyone who has the same issue, here's the product:

Deka


You can order it from the company in the link, Trendsolution

Use the squirt lid that comes with it and squirt onto the back of toilet bowl. It wills start bubbling. Let it sit, then scrub it with a no-scratch sponge (I get a green and white one from Coop).

I had to do it four times to get all of the scale, but now it's completely gone. No heavy scrubbing or anything like that. This stuff also works for a green scale that was in our upstairs shower. That only took one shot.

I can't believe something finally got that stuff off of my toilet.

There's also a product called Shot for clogged drains.

Hope this helps someone. I have never been so thrilled with a clean toilet.
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  #25  
Old 09.01.2020, 16:28
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Re: Serious Limescale build up on a loo

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I have had this issue for years with our toilets in Wallisellen. Until today, the only solution I had was professional cleaning. But for anyone who has the same issue, here's the product:

Deka


You can order it from the company in the link, Trendsolution

Use the squirt lid that comes with it and squirt onto the back of toilet bowl. It wills start bubbling. Let it sit, then scrub it with a no-scratch sponge (I get a green and white one from Coop).

I had to do it four times to get all of the scale, but now it's completely gone. No heavy scrubbing or anything like that. This stuff also works for a green scale that was in our upstairs shower. That only took one shot.

I can't believe something finally got that stuff off of my toilet.

There's also a product called Shot for clogged drains.

Hope this helps someone. I have never been so thrilled with a clean toilet.

Sulphuric acid you buy from drogerie stores (about Chf 10.--/litre) works just as well
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  #26  
Old 09.01.2020, 17:11
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Re: Serious Limescale build up on a loo

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Sulphuric acid you buy from drogerie stores (about Chf 10.--/litre) works just as well
I'm sure Sulphuric would work too, but Hydrochloric is what I've used - available in French supermarkets at a couple of euros per litre. Works well, but best if you transfer to a squirty bottle of some sort for limescale buildup above the waterline, as you need to keep reapplying it. For below the water just use a lot of it and let it sit there for an hour or two.

Obvious precautions need to be taken, like not getting it on any other surfaces or your skin, but sensible handling isn't difficult.
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  #27  
Old 09.01.2020, 17:48
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Re: Serious Limescale build up on a loo

https://www.hornbach.ch/shop/Badkera...ikelliste.html
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