Plaster Staining Identification

[mjpohl]

This season I started noticing a light brown to light tan staining on some areas of my plaster. My pool is only 1.5 years old and I keep up well with balancing and brushing. My only struggle has been PH which I am constantly bringing down from 8.0. I've brushed it and nothing happens. I'm considering testing for metals since I've read copper and iron can be possible causes.
Any other ideas? If I test for metals is there a kit you recommend?

I have included a pictures (don't mind the debris i'm vacuuming currently)
Current Levels
FC: 4.5
CC: 0
CYA: 60
CA: 170
Salt: 3500
ALK: 80
PH: 7.4

 

[ajw22]

Read...

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

 

[Gingermom]

Read...

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

That article does not have any pictures - so it doesn't really help identify. I have similar spotchy spots. The unhelpful comment I got from the pool people was plaster just does that with age, you should have gotten a different finish. So are there pictures of the various stains to help with identification, or is it just try and see what works? I did try the chlorine tab on what I knew was an organic spot - now I have a yellow circle in my deep end where the tab sat. Any thoughts on that?

 

[ajw22]

You try it and see what lifts the stain.

How long did you let the tablet sit for? You should only put it on the stain for a few minutes 2 to 3.