Niece has bought a new house. Bath v old but solid - I think its enamel. She was going to rip it out and put in a B&Q cheapy but I've persuaded her to try to clean it up instead.
The bottom is grimy and has some orange stains (look like rust, but not metal bath, sort of on the white enamel)
She's tried bleaching it - no joy. Also she has a blue limescaly stain underneath taps.
What can I advise her to use?