Dark colored stuff in between pebbles. Hopefully not black algae. I don’t know how I would have gotten that.
Any ideas or help?! Thank you
What is this?
- Thread starter Kkatwilson
- Start date
Dark colored stuff in between pebbles. Hopefully not black algae. I don’t know how I would have gotten that.
Any ideas or help?! Thank you
- Jul 21, 2013
- 65,437
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
That just looks like spots of over exposed aggregate to me.
Do a Overnight Chlorine Loss Test
www.troublefreepool.com
Do a Overnight Chlorine Loss Test
Black Algae
This guide provides a step by step procedure for eliminating black algae in your concrete or gunite pool. Read full post here.
www.troublefreepool.com
Looks like a bunch of yellow arrows on the bottom of your pool. Never seen such a thing. 
Sorry couldn’t resist. But I honestly don’t really see anything
Sorry couldn’t resist. But I honestly don’t really see anything
