Brown Stains

[blue94z]

Needing some help to figure out what is causing these brown stains.

Saltwater pool, micro pebble plaster, water temp 60 degrees in north Texas with borates at 42 ppm.

My tests Taylor kit results are very similar with the store’s.

I have brushed but nothing is happening. What would you recommend?

 

[Mdragger88]

Stains in Your Pool

The stained pool is beyond embarrassing. Our in-depth Guide to remove stains in your pool will help you to remove the stains and prevent them in the future.

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Your cya (if that is accurate) is very low for a swg pool.
FC/CYA Levels
Do not adjust anything based on ps tests.
Use & post your own results from your kit.
Plz Add which kit you have & other pool details to your signature.

Create Your Signature - Further Reading

www.google.com

 

[blue94z]

Thank you for the reply and I have updated my signature.

My tests from Taylor K-2006C with PS verified same results. I have since added acid to get down to 7.4-7.6.

From my test I knew my CYA level was low but wanted confirmation and will be adding conditioner to get that level corrected.

Any thoughts on what these stains might be? Or how to treat them?

 

[Texas Splash]

Welcome! I'm having a hard time seeing the stains in the pics, but you can try rubbing a Vitamin C tablet on a stain to see if it's iron. If that doesn't work, we have a couple other options. Are you the original pool/home owner? Any pool store products added to the water that you are aware of?

 

[blue94z]

Original owner built and opened last year. I have been maintaining the pool myself and no store products added. I will go get some vitamin c tablets and try them on the stain.

 

[Mdragger88]

Fertilizer or something rusty could have blown in causing an iron stain. I really had to stare to see so hopefully it comes right up.