Pine cone stains on Limestone

Hi, i am hoping for some advice. Our pool has Croatian White Limestone for the coping and surrounds. We have an area where pinecones from the pine tree fall on the area certain times of the year and leave orange / yellow stain which i am having trouble removing. This area is yet to be sealed, hence problem as i want to remove / disguise / bleach stain before i go ahead and seal. Any ideas for best removal would be greatly appreciated. Thank you, am willing to purchase if you have solution. Thnks

Hi-Best solution may be a poultice. The limestone is porous and you may need a pro to access the situation and try various solutions.

Find one at www.stoneandtilepros.com

Stu Rosen