White hazing on grout lines

[Josh Almanza]

Did an estimate for a customer who wants his tile and grout cleaned in his pool house. Ceramic tile with what looks like sanded grout that is not sealed. At the inspection I noticed grout lines in some areas had a white haze..I thought initially it came from perhaps the chlorine from the pool as they walked in and out of the pool house. What are some remedies I can do to get the tile completely rinsed off and clean? Sorry didn’t take no pics of the grout.

 

[hogjowl]

Efflorescence
Google it

 

[Mikey P]

Haze or Crust?

 

[Josh Almanza]

Haze or Crust?

Haze

 

[Mikey P]

More than likely what ever you do will be futile.

Outside water intrusion issues can are usually irreversible



But try acid cleaner and a Malgrit brush with zero expectations