I've seen it in the same place the past two Fridays. I'm assuming it's some sand that's left over from when the old sand filters failed. When that happened there was lots of sand on the bottom. I'm guessing it'll only go if they use a pool vacuum to clean the bottom.
Maybe because you would have thought such an incident would have been publicised, or someone on here would know what it was?
On the face of it it seems odd, especially if they were on blues and twos, if there was no serious reason for it.
Unless, as I said, it was some kind of training exercise?
Recommended Posts