In article ,
wrote:
On Wed, 03 Apr 2013 00:08:51 +0100, The Natural Philosopher
wrote:

On 03/04/13 00:01, wrote:
What is the single most effective (available and legal) solution to
getting rid of scale below the water line in a toilet bowl?

Kilrock-K (that's in liquid form not the gel) is the stuff I have
found most effective.

basically just formic acid. Might be a surfactant in there. drop of
teepol

http://mistralni.co.uk/products/form...methanoic-acid

a lot cheaper than kilrock

Remove as much water as possible, pour enough
Kilrock in to coat the affected surface, brush in lightly and make
sure the room is very well ventilated. Leave for 15 minutes, brush it
and repeat until sparkling clean
--

It is a good price if you have thirty pounds plus of things to order
otherwise expensive on postage.

Aldi were selling Kilrock fairly recently at just a little more; just
a shame you cannot rely on Aldi having things in though.

perhaps there isn't a branch near you, but Robert Dyas keep Kilrock and
frequently have it on offer

--
From KT24

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