Hello! We built a brick patio last year but it was a disaster when it came to the polymeric sand. We tried 2 brands but had a hard time getting all the residue off the bricks (broom, leaf blower), so when we wet the sand there was a change in color of the brick. It’s almost as if the bricks are too absorbent and just retain any residue.

Is this just a reality of cheap bricks and polymeric sand or is there anything that can be done? Close up shows residue.

Thanks!