Hi
I have a Bath stone wall which is covered in lichen etc.
Can anyone suggest what is the best way to clean this as it is very soft and I don't want to damage it by using the wrong product.
Thanks in advance for any advice
I have a Bath stone wall which is covered in lichen etc.
Can anyone suggest what is the best way to clean this as it is very soft and I don't want to damage it by using the wrong product.
Thanks in advance for any advice