Help.
I have just had a round black marble basin fitted into my bathroom two weeks ago.
Despite being ultra careful I can already see marks which I assume are watermarks appearing as a faint line.
I’m using diluted washing up liquid to clean with until I can get marble cleaner.
Sometimes the white cloth looks grey where I’ve wiped round the basin.
I’m beginning to think I’ll regret this gorgeous looking but impractical basin.
Any advice gratefully received.