Sorry for the boring and probably done to death topic!
We have just purchased our first house, and unfortunately can't afford to replace bathrooms at this point. There's 3, 2 of which are white tiles with white grout which is really yellow and black in places and generally discoloured.
It's also in a very hard water area (not UK) só the taps are covered in thick white matter and limescale and the toilets too.
What are the best products to clean grout and remove thick limescale from stainless steel taps?