Pool Plaster Issues - White Spots in Quartz Finish

[h2o]

We had our pool resurfaced last February (16 months ago) in a Bermuda quartz finish. The plaster has developed white spots all over it. Aside from maybe low chlorine, the water chemistry has never been off and I have been VERY mindful of my CH levels.

I don't think this is scaling. The spots are smooth to the touch and indistinguishable from the rest of the pool surface by touch. The finish is technically out of warranty, but the refinisher is coming out Friday to take a look. I'm sure they will say it's due to bad pool chemistry. Any input will be greatly appreciated.

 

[ajw22]

Plaster Installation and Maintenance - Further Reading

www.troublefreepool.com

Being Blamed for Plaster Discolorations? Don't Get HoodwinkedSome newly plastered pools (including quartz and pebble finishes) may develop either white soft spotting (also called "spot etching" by some plasterers), streaking, calcium nodules, gray mottling discoloration, spalling (flaking), or severe craze (check) cracking within a few months after being plastered, and whoever has been maintaining the water is often incorrectly blamed for those plaster problems and defects.
White Spotting of New Plaster PoolsThe problem of plaster spotting has been an ongoing puzzle and controversy in the swimming pool industry for over three decades. The generally round, smooth-yet-unsightly white soft spots in new plaster pools have long been a source of contention among pool plasterers, and pool chemical service firms or pool owners, each blaming the other for the phenomenon.

 

[h2o]

Well, that is disheartening to read. It appears there really is no fix for it other than resurfacing again.

This jumped out at me: "Severe white spotting can cause the calcium hardness level of the pool water to increase, and does that through the process of the plaster surface deteriorating and dissolving plaster material into the water even though the pool water is balanced."

I haven't noticed my CH levels rising, rather, I had to add some calcium chloride to the pool recently to raise my CH levels. It dropped down to about 240. Currently sitting about 280.