Spot/Stain on my pool floor and discoloration from applying Dry Acid

[Foose]

Hi all! New to the site, just discovered it while trying to research an issue I'm having with my pool. New pool owner, our pool was finished about a year ago so i would be extremely grateful for your advice.

A few days ago I noticed this spot on the floor of my pool, so I dove down with goggles on to check it out. It's wasn't something I could brush out so I went to the local Leslie's pool store to see if they had any advice. A lady working thought it might be yellow algae and recommending me putting dry acid in a sock and dropping it on that spot. I was able to do that, however the spot did not go away and something new resulted, a dark trail running from the spot to the drain, from what I'm guessing is how the dry acid traveled to the drain in my pool. Thoughts or advice on how to clear up both?

Thank you in advance!

 

[ajw22]

Sand the area with 80/100 grit wet/dry sandpaper.

We recommend staying out of Leslie and never soliciting their advice.

We also don't recommend the use of dry acid...

Acid - Further Reading

www.troublefreepool.com

FYI, here is what we have to say about mustard algae....

Mustard Algae

Today We are going to show you how you can get rid of mustard algae in your pool. By following the steps in this guide and with no expensive chemicals.

www.troublefreepool.com

I suggest you look around here and see what we are all about...

Pool Care Basics Archives

Your one-stop shop for all things TFP to include: ABCs of Water Chemistry, Recommended Chemicals/Levels, Test Kits, Troubleshooting, and much more!

www.troublefreepool.com

 

[Foose]

Sand the area with 80/100 grit wet/dry sandpaper.

We recommend staying out of Leslie and never soliciting their advice.

We also don't recommend the use of dry acid...

Acid - Further Reading

www.troublefreepool.com

FYI, here is what we have to say about mustard algae....

Mustard Algae

Today We are going to show you how you can get rid of mustard algae in your pool. By following the steps in this guide and with no expensive chemicals.

www.troublefreepool.com

I suggest you look around here and see what we are all about...

Pool Care Basics Archives

Your one-stop shop for all things TFP to include: ABCs of Water Chemistry, Recommended Chemicals/Levels, Test Kits, Troubleshooting, and much more!

www.troublefreepool.com

Thank you for the tips!! Any thoughts on how to fix the trail the dry acid left?

 

[ajw22]

Any thoughts on how to fix the trail the dry acid left?

Sand the area with 80/100 grit wet/dry sandpaper.

 

[Foose]

Sand the area with 80/100 grit wet/dry sandpaper.

Oh, ok, Thought you meant to sand the yellowish spot with the sand paper.

 

[ajw22]

Oh, ok, Thought you meant to sand the yellowish spot with the sand paper.

You can try it on that spot also.