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How do I get rid of limescale in my toilet?

(52 Posts)
Wake Mon 31-Aug-20 01:56:15

We have recently developed brown limescale in our en-suite toilet. Never had it before. I usually use Harpic or Domestos.
We have tried draining the toilet and putting in Coca Cola and white vinegar neither of which have touched it.
Any suggestions?

Thecatshatontgemat Wed 02-Sept-20 17:37:29

Hydrochloric acid. It's the very best, and you only need a cup full. Not now sold to the great unwashed, but just get a tradesman to get you some.
Hardware stores stock the gentler version, called Spirit of Salts, but you might need two bottles (about £3.00 each when a bought it a few months ago).
Both are very nasty to use, stink to high heaven, but get the job done once and for all.