PebbleTec, little white deposits

[KimoBBZ]

After a late startup this year (due to some retaining wall construction) we finally got in this past week, but noticed the walls & floor of the pool felt very rough. Just brushing up against it or kneeling on it was painful, and has produced some nasty scrapes on the kiddos. I've attached photos (taken w/ my trusty $99 Nikon underwater camera). What the heck is it? Is it safe to swim in? How do I get rid of it? Any pointers welcomed, we're a little freaked out.

 

[duraleigh]

Welcome to the forum.

Guessing from the picture, they look like calcium nodules or growth. They are caused by a combination of high CH and high pH.

If you can post a complete set of test results., it likely would shed some more light on them.

 

[KimoBBZ]

Thanks Dave... I'll reach out to our maintenance folks for a report, then? Meantime here's some clearer pics:

Added 6/30 - Coming for a water sample tomorrow, report soon!

 

[duraleigh]

KIMO,

OnBalance would like to look at the Pics but they seem no longer available. Can you re post them?