Father inlaw decided it was a great idea to clean 2 of the york stone flags in my front room with this sugar soap stuff, its bright- almost flourescent yellow and now i have finally managed to rinse the soap out with 6 buckets full of water they have dried this greeny/yellow colour.
Is there anything I can do besides replacing the flags?
Any help would be appreciated - Ive restored all the stonework in my house over the past 2 years including the original fireplace this will completely spoil my work if i cant fix! gutted.
