Strange discoloration around concrete edges comes and goes, why?

Jwmart

New member
Feb 27, 2021
2
El Dorado Hills, CA
See photos. Any ideas what this discoloration is around the grove in the concrete?
it seems to come and go.
The picture with very little is from October, the one with the discoloration was taken today on my ring cam.
 

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cowboycasey

Gold Supporter
LifeTime Supporter
TFP Guide
Jul 3, 2013
8,648
Southern OK
Pool Size
15000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
CircuPool SJ-40
Welcome to TFP :)

Looks like you have gotten some dirt in the cracks and then it rains... the discoloration should go away as it dries, it may take a while to dry... :)
 
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