I’ve got these for a couple of weeks now. It’s only two places in the entire pool surface.
Are these stains? If so, course of action?
Big thank you!
Are these stains? If so, course of action?
Big thank you!
Are these algae or stains?
- Thread starter southflorida427
- Start date
-
- Tags
- new finish stains
Todays test results:
FC 3
CC 0
pH 8+ (I’m struggling to keep this low)
Alkalinity 60 (going to lower to 50 to try to keep pH around 7.6-7.8)
CH 400
CYA 60
Salt 3600
FC 3
CC 0
pH 8+ (I’m struggling to keep this low)
Alkalinity 60 (going to lower to 50 to try to keep pH around 7.6-7.8)
CH 400
CYA 60
Salt 3600
Last edited:
- May 3, 2014
- 58,262
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Set a trichlor puck on them for 10 minutes or so. See if they change color, etc.
That looks like rust, like something metallic sat on the bottom and rusted. Any chance you have fertilized around the pool recently with a fert containing iron?
We recently (about a month or so) remove a wall of 80 feet of hedges (ficus) near the affected area. Also, they’ve been installing a new fence. Fertilize before that I cant be sure as the lawn guy is kind of a free spirit (does the job, but on his time/way/no information).
- May 3, 2014
- 58,262
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Installing a fence could be culprit. Many times they are not real careful about pieces of metal getting bounced around.
Now try a thin nylon sock with crushed vitamin tablets in it. Set that on the stains. It should either clear the stains or change its color.
Now try a thin nylon sock with crushed vitamin tablets in it. Set that on the stains. It should either clear the stains or change its color.
I think you mean regular Vitamin C, right? (just googled it)
- May 3, 2014
- 58,262
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Stains seem to change color with the vitamin. Slowly. Rubbing the vitamin doesn’t erase it, rather it’s a slow fade if I crush one on top of it (or the sock).
What would be the couse of action, leave the sock on top of it until gone? (There a many little spots)
Can this end up in change of color of the plaster around it?
Thnx.
- May 3, 2014
- 58,262
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Sounds like iron if it is fading it. Put a bunch of the tablets in a thin nylon sock and crush them up a bit. Set it on the stains with something to press it down (rock, pool brush) and wait 15 minutes or so. Should take care of them.
It will no effect on your plaster.
The Ascorbic Acid does consume chlorine. So test your FC after to see if you need to boost it with chlorine.
It will no effect on your plaster.
The Ascorbic Acid does consume chlorine. So test your FC after to see if you need to boost it with chlorine.
Thank you for the help. Stains are fading slowy. Need to get another Vitamin C bottle to do a second round of treatment.
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