[tennis36]

I was fertilizing some potted plants on my paver patio with granulated fertilizer. There was some spill over which left white stains on the pavers. I have tried power washing, and scrubbing to no avail. How can I remove these stains? Thanks.

[Stonehenge]

You could try efflouresence cleaner, or just let it come out naturally (wait it out).

[Fine Edge]

I'm still waiting for one of my customers stains to go away from the same thing. lawn fertilizer all over his paver patio which he neglected to wash away.
It's been almost 2 years and it still looks terrible.