Bad Plaster Job


New member
May 19, 2020
New Jersey
Last year we had our pool replastered with diamond brite. It came out very streaky and blotchy and we were not happy with the results. The GC ended up giving the pool 3 acid baths to try to even out the color. They also closed the pool at the end of the season after the last acid bath. I just opened the pool and there are black streaks down the sides all around the pool. The shock and brushing do not remove These stains. I need advice on how to proceed. Is this due to the acid baths or a bad plaster job?



Gold Supporter
TFP Guide
Jul 21, 2013
Northern NJ
Welcome to TFP.

Go though the stain identification process described below and see if anything makes a difference...