Good evening all,

I just wanted to confirm that this is an efflorescence stain and F9 Efflo would be the right choice for cleaning these whitish stains on brick.  Guessing I'd use a lower strength mix (efflo) along with the typical instructions of PW, apply, keep wet etc.

The customer has had previous people  try to remove this with pressure and other methods with no luck.  Also, not really sure what I should charge for something like this if anybody wants to shoot me a PM.

Thanks in advance for your help!