how long b4 salt stains disappear on new brick work

[dilly]

Hi got some of my new brickwork rained on and now have got them horrible salt stains how long b4 they disappear or is there something i can do cheers

 

[PrenticeBoyofDerry]

For a build up of deposits on a wall, a good scrub with a dry, stiff brush will remove the worst, but make sure you follow it with a soft brush to move the salts away from the wall entirely. They will stay in the pores of the brickwork and dissolve again when it is wet. Treatments, such as acid etc, generally involve getting the surface, and the salts, wet again. This dissolves them and carries them into, not out of, porous surfaces.

 

[^woody^]

Maybe next week, maybe never