On 03/11/2020 22:11, marika wrote:
On Tuesday, October 6, 2020 at 9:47:57 AM UTC-5, www.GymRatZ.co.uk
wrote:
On 06/10/2020 15:32, tim... wrote:
My toilet pan has a stain below the watermark that neither bleach
nor readily available acid (vinegar) will remove

what stronger products are easily available that will remove it?

Brick Acid. Or for the feint of heart a more dilute version is
available from your average DIY sto
https://www.toolstation.com/bostik-c...cleaner/p29118


Pump out all the standing water from the u-bend with a bog brush or
whatever first and re-fill with the above. Leave overnight. It's
not a BigJob

i just took a closer look at this when i got home not only does this
show that you updated your preferences but it also shows that it was
as expected!!!

I have had some success with some of these calcium lime rust removers
available in most stores. CLR was one of the brands I used but you
have to be careful if you have a septic system. Could mess with the
flora.

I have a septic system - a modern sewage treatment plant using aerobic
bacteria. The only time it smells is when the motor fails to turn the
biodisc. I have poured gallons of acids and alkalis down it over the
years. Just make sure that you pour more gallons of water down as well
after the job is done.

As you have said it is not a big job but the key is to empty the bowl
of water and shut the water off for a while.

if it sits long enough it will come off the way tartar does when the
hygienist cleans your teeth

one really strange thing I bought that was really effective - a
pumice brush. It is not a rock, but some sort of agglomeration of
pumice particles on a stick so you can reach in the well or the rim
of the bowl.

I thought it was going to be a useless purchase but it just about
ripped the build up off without you having to stick your hand in the
water. Very abrasive but absolutely did not scratch the ceramic. I
found it was useful for a lot of other housework and outdoor work.

Only wusses bother with that. Stick your hand in the water.

multiple applications of descaler - of te toilet type, preferably - and
abrasion will remove any stained limescale. Then follow up with bleach
to get rid of any 'understains'...

Be wary of using Hcl. It does bad things to chrome.

--
"The most difficult subjects can be explained to the most slow witted
man if he has not formed any idea of them already; but the simplest
thing cannot be made clear to the most intelligent man if he is firmly
persuaded that he knows already, without a shadow of doubt, what is laid
before him."

- Leo Tolstoy