How does one clean outside red brick being used as a walkway. Mineral deposits from the water system have left white stains around the plant pots. Have tried calcium type home cleaners without much success. What will clean the brick back to a red only color and then what can one put onto the brick as a deterent to future discoloring?

Acid and water mix (at local hardware store )
Brush and rinse
Get r done:)

acid and water mix (at local hardware store )
brush and rinse
get r done:)

I also have a huge section of my neighbour's brick wall with a horrible white mark, made by their dodgy oveflow.. is there a brand name for the acid and water mix?

Thank you..