On 04/11/2020 10:14, www.GymRatZ.co.uk wrote:
On 03/11/2020 19:24, No Name wrote:

If it's limescale it'll be rock solid. You might chip it off but if
there's scale you can see it's going to be just as bad on the blind side
that you can't get to.
Best off with a full de-coke as required.


what about kettle descaler and a kettleful of hot water?

Cools down too quickly.
Proper acid is by far the best and can be left in to work over night.

Just make sure it's flushed before taking a dump as you wouldn't want
splash-back.

I have used Hcl and toilet descaler. The problem with Hcl is two fold,
firstly as it fizzes away the surface gets covered in calcium chloride
which takes time to disperse, so you need to scrub away a bit to break
it all up if you want things to happen fast.

The second is its a bit too aggressive on metals.

Proprietary gel type descaler works well enough -just shove it in every
night and use a bog brush every morning - it will in the end dissolve
just as much as HCl, and its much safer.


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