Last year we did a complete remodel on our 18 year old pool and patio. Went with the sand beige color plaster with the crushed aggregate material in it (not sure of the proper terminology). A couple months later, this happened
and left me with a bit of a mess. As soon as the flood waters receded I hooked up a 2 inch pump to circulate water from the pool to the hot tub which then overflowed back to the pool. Worked plenty of chlorine through it and my pool guy stopped by a few times to add some acid and help me get it cleaned up and ready to put back on the pool pumps as soon as power was restored. From there, filter flushes and fresh DE for several weeks until the water was back to normal. What I'm left with are some dark stains throughout the pool that haven't cleared up including some fairly heavy ones around the deep end and one odd dark stain by one of the drain grates in the bottom. Short of draining the pool and acid washing(which my pool guy says won't really harm this type of plaster) what are my options? He has been swamped with work since the storm and has been involved in a huge commercial construction project that he will probably be able to retire off of. No telling when I can pin him down to get my problems solved and I don't trust anyone else locally. Any suggestions?