The Reflecting Pool on the National Mall has already begun to grow algae just days after President Donald Trump’s major renovation project was officially completed.
The landmark has been the subject of controversy since the project began, with critics pointing to budget ballooning from a little under $2 million to a staggering $14 million. Trump contracted Atlantic Industrial Coatings for the project to be completed ahead of the celebrations for the 250th anniversary of America.



If i presure washer won’t, sanding a mm off the top will and probably wouldnt mess anything up. Or maybe it’s completely fucked. I’m not a pool or paint guy.
Sanding won’t hurt the granite other than taking the surface finish off of it. But it might be left with all of the cracks and chips in it still blue.
A good reminder how vile things creep trhough the foundation of a nation when allowed to do so.
Media blasting with walnut shells would probably do the trick.