Is there a way to fix (large dark spot at the bottom) discoloration on a gunite pool? I tried acid wash and had no luck : r/pools
4 Ways to Diagnose and Remove Any Swimming Pool Stain - wikiHow
Pool Stains & Discoloration in a Marcite Pool - In The Swim Pool Blog
Vinyl Liners: Tackling the Toughest Stains of All, the Kind Behind the Liner| Pool & Spa News
Advice for service pros dealing with pesky vinyl liner stains - Pool & Spa Marketing
Discolouration of Liners | Aquaflex
Even worse than the room: the OUTDOOR POOL! This is a photo of the bottom of the pool. The green spots are algae about a half inch thick, the brown spots are
Brown Spots | Trouble Free Pool
Pool Stains, What They Mean & How To Remove Them - Pool Magazine
Know Your Stains| Pool & Spa News
How to Identify and Remove Pool Stains | AstralPool
Stain Identification - Aqua-Tech
How To Kill Brown Algae In Your Pool | Clean Pool and Spa
Why is there a sticky substance on my vinyl liner and how do I get rid of it? | McEwen Industries
Algae stain removal treatments for algae stains in swimming pools
Dealing with vinyl liner stains - Pool & Spa Marketing
What are the dark brown and orange spots on the bottom of my pool caus
Brown spots in pool. What could they be? : r/pools
Large Brown Spots on Liner - organic | Trouble Free Pool
How to tell Pool Stains
How to identify and remove pool stains.
Dealing with vinyl liner stains - Pool & Spa Marketing
brown spot on bottom of pool w/pics | Trouble Free Pool
How to Easily Remove Rust Stains from your pool
