You need to get your water chemistry under control, then you can work on stains in your pool...Started to drain pool to dilute it but this it what my plaster looks like. Can it be from the high levels
Could that be why it looks like thatYour CYA is likely higher, but that is about as high as a Pool Store test machine can go.
You need to get your own test kit. Taylor K-2006C or TFT Test Kits
Test Kits Compared
We cannot do much with pool store tests as they are too inaccurate.
![]()
Pool Care Basics Archives
Your one-stop shop for all things TFP to include: ABCs of Water Chemistry, Recommended Chemicals/Levels, Test Kits, Troubleshooting, and much more!www.troublefreepool.com
Not from high CYA.Could that be why it looks like that
You need a proper test kit. I suggest the TF-100/Pro or Taylor K2006C. A proper test kit is needed to get the accurate water chemistry results needed to follow the TFP protocols.
Once you get your test kit, run a full set of tests and post them here.
Plaster erosion is normally due to low CH, low TA, low pH, and / or the use of granulated acidic products in the area of erosion.
Make sure you have the right test kit now and start testing your own water - either a TF-100 or Taylor K-2006C (link below). That's going to be a must for a happy swim season.
Is that considered etching? Can it be fixed with balancing the chemicals. It feels like it needs to be sandedNot from high CYA.
Could be organic from lack of chlorine or metals staining.
wow! Pretty friggin rudeAre you just going to keep posting the same problem every year and ignore the advice?
We are wasting our time if you are not going to get a good test kit and begin to follow the recommendations.
Spots on pool
Does anyone know what this is??? Seems like rough holes in my plasterpwww.troublefreepool.com
Is that considered etching?
Can it be fixed with balancing the chemicals.
It feels like it needs to be sanded