Scale forming at the top of the tiles??

Docpatel

Well-known member
Oct 25, 2020
45
Denton, TX
Pool Size
15000
Surface
Plaster
Chlorine
Salt Water Generator
TFP Expert team,

I had a pool installed last year....opened it in October 2020.

Obsessed with keeping my CSI balanced between +- .3
I have an interesting thing happening though....there appears to be something scale-like forming at the TOP of the tiles....and a thick/weird calcified-scale-like stuff forming at the water feature (Pictures Attached).

What might be happening?
Is this type of issue a warranty-type thing where the company needs to resolve...or something else? Not sure what to do.

Pool specs:
SWCG
Ph: 7.5 to 7.8 range
Chlorine: 5-7 range
Calcium: 300
CYA: 70
TA: 90-100
Salt: 3200

IMG_7164 (1).jpegIMG_7165 (1).jpegIMG_7166 (1).jpegIMG_7167 (1).jpeg
 

Docpatel

Well-known member
Oct 25, 2020
45
Denton, TX
Pool Size
15000
Surface
Plaster
Chlorine
Salt Water Generator
Thank you. I then read more on efflorescence in other articles and very good info.
It also sounds like this is non-warrantiable on the "sealing" of it. It's not completely around the pool...but about 25% of the tiles....annoying but will try the muriatic acid cleaning approach.

Thanks again.
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
28,603
Northern NJ
Pool Size
35000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
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proavia

LifeTime Supporter
TFP Guide
Feb 6, 2015
2,508
Chandler AZ
Pool Size
12300
Surface
Plaster
Chlorine
Liquid Chlorine
To minimize any calcium buildup at the actual waterline and in your SWG ,
keep the CSI between 0 and -0.30 - so slightly negative CSI.
 

Docpatel

Well-known member
Oct 25, 2020
45
Denton, TX
Pool Size
15000
Surface
Plaster
Chlorine
Salt Water Generator
@proavia Waterline is pristine clean...it's at the top of the tile. But I think I have a handle on this now. Going to give the muriatic acid cleaning solution a try in a bit.
 
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