Had a crack form in our spa after 7 years. Finally got the pool builder to repair it after 1.5 years of back and forth (praise the lord), which involved demoing/concrete patching/replastering the spa (grey NPT quartzscape).
Everything has been mostly fine. However, in the 2-3 weeks it's been curing what look like white brush strokes have started appearing all over the place with varying levels of size and intensity. I've kept the chems at spec (NPT and builder guidelines), haven't used the heater, and have brushed it 2-4 times a day, so I'm certain it's nothing I've done. Does anyone know what these are (photo below)?
What research I've done seems to indicate they may be trowel marks? Like, the plaster guy trowel too aggressively too long. I don't have any delaminating plaster or anything, though there was quite a bit of dust the first 4 days or so. Assuming they are late trowel marks, what's the fix? High muriatic with targeted brushing? I'm going to follow-up with the PB, but I'd like to have some idea what's happening before I do. Thanks!
-Rick
Everything has been mostly fine. However, in the 2-3 weeks it's been curing what look like white brush strokes have started appearing all over the place with varying levels of size and intensity. I've kept the chems at spec (NPT and builder guidelines), haven't used the heater, and have brushed it 2-4 times a day, so I'm certain it's nothing I've done. Does anyone know what these are (photo below)?
What research I've done seems to indicate they may be trowel marks? Like, the plaster guy trowel too aggressively too long. I don't have any delaminating plaster or anything, though there was quite a bit of dust the first 4 days or so. Assuming they are late trowel marks, what's the fix? High muriatic with targeted brushing? I'm going to follow-up with the PB, but I'd like to have some idea what's happening before I do. Thanks!
-Rick