Pool plaster changed color

Aug 8, 2018
27
Smyrna, Delaware
Hi! I have posted before about my pool having to be re-plastered just a year after it was complete due to a divot being left at the bottom of my deep end. Anyway, today we are drain our pool to below the light because the light needs to be replaced. And this is what our plaster looks like. It is blue and dark grey. We do not cover our pool. It is not open yet. We do brush regularly even in the winter. Does anyone know what this is, how to fix it and how to prevent it? Thanks in advance.
 

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What makes you think anything needs to be fixed. It looks like normal weathering and maybe some scale. An acid wash can remove a layer of plaster, even out the color, and reduce the life of the plaster. You can hit the plaster with a power washer and see if it makes any changes.

You didn't see the color variations with water in the pool. I would replace the light, refill the pool with water, and move on.
 
What makes you think anything needs to be fixed. It looks like normal weathering and maybe some scale. An acid wash can remove a layer of plaster, even out the color, and reduce the life of the plaster. You can hit the plaster with a power washer and see if it makes any changes.

You didn't see the color variations with water in the pool. I would replace the light, refill the pool with water, and move on.
We saw the blue color while there was water in it. With the first plaster it didn’t do this. Now that it has been re-plastered it has these colors in it. I dont know if this is normal or not. Just looking for suggestions.
 
My suggestion is you fix your light and refill the pool with water.
 
The green is copper. It looks like there is some iron, scale and mottling.

I would stop using the minerals.

Scale can be controlled by maintaining a good CSI.

Iron will always be a problem and it is difficult to control.
 
Ok I will not use the cartridge this year but how do we remove the stains?

There is no easy way. You did not see them with water in the pool. To get copper out of your water you need to drain your pool and replace the water.

Take your water into a pool store and have them test it for copper and iron. Let’s see how much you have in the water.

Where is your fill water from? municipal water or a well? You have iron in your house water? You get brown stains around drains?


 

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There is no easy way. You did not see them with water in the pool. To get copper out of your water you need to drain your pool and replace the water.

Take your water into a pool store and have them test it for copper and iron. Let’s see how much you have in the water.

Where is your fill water from? municipal water or a well? You have iron in your house water? You get brown stains around drains?


Our water is high in calcium. We get red color in the toilets. We fill from our house because last time they tricked water in we had iron stains and then they re-plastered. We used one of those copper out bags I our filter last year md no copper was found in our water. I even have copper test strips. It’s just crazy that the first plaster was fine. No
Issues. Now with the re-plaster there are problems.
 
It could all be coming from your Nature2 minerals.
 
Last edited:
We have a mineral system. Nature 2
Hi Teen124, not trying to dredge up the past, but a couple of years ago, many ppl on here told you that you should not be using the mineral system because it can cause staining, and it doesn't seem that you heeded that advice.

If you are truly interested in having a 'trouble-free pool', then it would be best for you to finally discontinue the use of the mineral system and go with good ole liquid chlorine (or a SWG if you can swing it). The whole basis of TFPC is that you test your own water with a good kit and only add what the pool needs. Your pool does not need copper and now the "cure" is worse than the "disease".

The only exception to testing your own water is for metals. Take a sample to the pool store and find out what the copper and iron levels are in your water. Then read the links and follow the advice the guides have provided above and you'll be on the right track. Report back with any questions and the good people on here will chime in with assistance. Good luck!
 
Hi Teen124, not trying to dredge up the past, but a couple of years ago, many ppl on here told you that you should not be using the mineral system because it can cause staining, and it doesn't seem that you heeded that advice.

If you are truly interested in having a 'trouble-free pool', then it would be best for you to finally discontinue the use of the mineral system and go with good ole liquid chlorine (or a SWG if you can swing it). The whole basis of TFPC is that you test your own water with a good kit and only add what the pool needs. Your pool does not need copper and now the "cure" is worse than the "disease".

The only exception to testing your own water is for metals. Take a sample to the pool store and find out what the copper and iron levels are in your water. Then read the links and follow the advice the guides have provided above and you'll be on the right track. Report back with any questions and the good people on here will chime in with assistance. Good luck!
Agreed. Looks like Teen has already signed up for removing the cartridge.
 
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