Bricks house

Hey everyone had a call today for a two story house which is all brick went to look at it has lots of algea and mold and lots of black around it which I would say efflorescence mostly all of the houses I have been washing are vinyl my mix 3 gallons 12.5sh 2 gallons water 5 ounces elemonator will this be good for the brick to or something different thanks for any advice

You will need a stronger mix. Maybe applied more than once. Certainly with more dwell time. We x-jet or direct apply brick.

Hey Tim I was going to use my xjet but how strong would your mix be and what porportioner would you use thanks for your help

I lost my proportioner. The only time I use the xjet is when i want to lay down some heavy bleach.