New Pool Owner - Brown Stain at deep end by drains

[Bluestream]

Hi, we filled our new pool in January and recently notice a big, brown stain near the main drains on our PebbleTec plaster. Despite scrubbing, it won't come off. My pool builder is telling me that I did a too good of a job of scrubbing. There isn't a lot of dirt/construction around us. How can I remove it without doing a drain and acid wash? Thank you.

 

[V___25]

I would say start here and see if any of this helps:

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.

www.troublefreepool.com

 

[Bluestream]

Thanks...I read through the summary but can't pinpoint anything major that would be causing this. Only suspects are continually brushing the pool towards the drain (where any loose dirt settles), or any salt/chemicals my former pool guy may have dumped in and didn't sweep. I'm really hoping to avoid a drain and acid wash on a new pool.

Is it possible that something was forced out up through the drains? Can you backwash the main intake drains?

 

[Bluestream]

Diver is coming out to test. I'll post results as soon as I have them.