Acid bath vs. Acid wash

[Teacherbythepool]

The problem:
-our quartz plaster has marks and blotches
-the sunshelf is brownish with blotches

The results from the diver inspection:
- acid bath (takes 4 days to 2 weeks and then another 4 weeks with no swimming, pool must be 65 degrees when treating)
-acid wash (remove chlorine, drain pool, one day for wash, refill pool)

Does anyone have any thoughts or experiences with this?

 

[ajw22]

Is it worth it to reduce the life of your plaster for a cosmetic problem? An acid treatment removes a layer of plaster and reduces the thickness of your plaster and possibly the remaining life.