So, I'll begin by saying that my Hayward automatic pool vac picks up everything. It's really quite good.
Anyway, I've noticed lately that increasingly, I'm finding accumulations of tiny pieces of stone in my pump basket after vacuuming. I don't have any stone like this in my yard, so I'm wondering if it's coming from my (sand) filter. Is that a possibility? Or does the filter only contain actual sand?
This is what it looks like:

I just want to make sure I'm not ignoring a problem with my filter or anything like that.
Thanks in advance...
Anyway, I've noticed lately that increasingly, I'm finding accumulations of tiny pieces of stone in my pump basket after vacuuming. I don't have any stone like this in my yard, so I'm wondering if it's coming from my (sand) filter. Is that a possibility? Or does the filter only contain actual sand?
This is what it looks like:

I just want to make sure I'm not ignoring a problem with my filter or anything like that.
Thanks in advance...