I open pool yesterday and there is a stain all over bottom. I included two pictures maybe someone will have some advice. I’m not sure what it is or what caused it. I tried brushing and nothing comes off. This is my 15 th year opening and first time I’ve had this problem. problem. I did have the pool plastered 4 years ago. Any advice on treatment would be appreciated.
Just open pool and stain all over bottom
- Thread starter peteb48
- Start date
What happens if you put Vitamin C or a puck on the stain for a minute? Those two tests should help determine if it's organic or metal staining.
With green water, you will need to treat the algae first, if it's organic, a SLAM will help remove the stains too, if it's metals, you will need to complete the SLAM process before you can treat the stains.
With green water, you will need to treat the algae first, if it's organic, a SLAM will help remove the stains too, if it's metals, you will need to complete the SLAM process before you can treat the stains.
Well I’m really worried now. Put a puck over one of the areas and asorbic acid on another no change on stain. The stain is 1/2 the pool surface. I can’t find when I closed what my numbers were but remember some, ph was 7.2, hardness was 250, free chlorine was 2.
No, not the closing numbers. What chemicals did you add? Specifically did you add any algaecide and if so what kind was it?
I did not add any algicide. I have a pool company open and close the pool. I don’t think they add anything but will ask them today?