The acid based toilet descaling/cleaning products generally contain HCl.
Probably more expensive that getting brick acid, but easier to get hold of with out a trip to the Bm, and I found it effective on our toilets
Bad for the glaze too - stick with sulphamic.
IMHE, Sainsbury's own brand (blue bottle) toilet limescaler is the best bang for the buck.
Loved that! Sadly, I understand what you are saying!
You made me smile as I took a puff!
Hope you asked him first ;-)
John
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