stuart noble wrote:
On 02/04/2013 18:51, harry wrote:
On Apr 2, 3:11 pm, "Mentalguy2k8" wrote:
What is the single most effective (available and legal) solution to getting
rid of scale below the water line in a toilet bowl?

Brick cleaner from Builder's Merchants.
Don't leave in too long.


Sulphamic acid crystals are PH 1 but also safe to handle. AKA Fernox
descaler. I wouldn't mess with hydrochloric, especially indoors

More or less what he said. Sulphamic acid has limited solubility. It's
impossible to prepare a concentrated solution - it crystallises out or
reaches its limit of solubility if you add too much. However it's acidic
enough to blitz lime scale.

Concentrated acids can also ruin the glaze on the toilet bowl if used often
enough or for extended soaking.

--
€¢DarWin|
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