u/UntimelyLlama

Hi all, our pool is about 1.5 years old. We've noticed these little thin wires being picked up by our cleaner and have been stabbed several times. They are pretty uniform is thickness/length and are shiny, almost like stainless steel. We only use nylon brushes as does our pool guy and we don't have anything in the yard that could be causing this debris to fly in the pool.

Does anyone know where they could be coming from? I'm concerned that they may be coming out of the plaster and there seems to be no shortage of these things.