Acid Wash problem

[JamesW]

It's not spalling.

 

[skimmerswimmer]

I think that it's definitely from the acid wash.

Really not much that can be done.

Maybe they can do underwater sanding to reduce the edges, but it's probably not worthwhile unless it's really bugging you.

Yeah, something like this would probably correct the problem:

 

[AJ76]

Late reply to the issue here but it looks like spalling.

Pool Plaster "Spalling"

One of the arts or skills of the pool plastering trade is properly timing the troweling process. If troweling is performed when water is present on the surface of the plaster, forcing water back into the plaster paste causes excessively high water:cement ratios in the surface finish, weakening...

www.troublefreepool.com

I have this issue in a few spot on my pool but without acid washing. They just slowly develop for me.

I'm absolutely convinced it's from the companies sump pump. They weren't there before the acid wash then BAM there after they finished job, as in immediately there.

Late reply to the issue here but it looks like spalling.

Pool Plaster "Spalling"

One of the arts or skills of the pool plastering trade is properly timing the troweling process. If troweling is performed when water is present on the surface of the plaster, forcing water back into the plaster paste causes excessively high water:cement ratios in the surface finish, weakening...

www.troublefreepool.com

I have this issue in a few spot on my pool but without acid washing. They just slowly develop for me.

Definitely not spalling.