Janit-X Scale Off Toilet Restorer 5 litre (without pump, 1 Bottle)

Really good product. Can't fault the results

I was doing up a house for a landlord friend the toilet had really bad brown stains cemented into the bowl I will say no more lol, I tried everything to get these stains out bleach, white vinegar, barkeepers friend and many other products nothing did the trick and then I found this product I literally poured a small amount into the bowl went off for a 30min errand and everything had dissolved all of the horrible stains, the limescale the toilet now looks brand new, just wish I had took a before and after photo 😂