Vinyl liner and fiberglass step staining

A046197

Member
Jun 17, 2022
10
Destin,FL
Pool Size
28000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
CircuPool RJ-60 Plus
Just wondering if anybody has any suggestions on removing the discoloration? I read the information on TFP about stains but didn’t come to any conclusions. Has anyone ever heard of or used products from this website: Brown Stain in Salt Water Pool | Pool Stain Removal Without Draining

I just finished a SLAM but pool has always had the discoloration the lighter spots just occurred not sure what it was from but assume that’s how the liner is supposed to look. It seems worse after pool turned green this past month. Thanks in advance.

FC 16 post slam day 1
Ph 7.5
Cya 80
Alk 70
Salt 3400
28000 gal saltwater
Sand filter
 

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Those look like metal stains. Specifically they look like Iron stains. Try a Vitamin C tablet test by rubbing a vitamin C tablet on one of the stains, if it lifts, it's definitely an Iron Stain.
 
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