We have a 1 year old pool that was recently emptied in order for the PB to acid wash the pebble because there were issues on install that had irrigated water leak into pool and wash the color out. The acid wash improved the situation but there is still a smaller white mark in one of the areas. Now that we have been filled for about 2 months I notice large white streaks (see photos.) I have notified PB and am waiting to hear back. Initially I was told plaster co was coming back out to look at the initial white mark. Did something go bad?