I'm not sure where this post should go, so forgive me if it is and feel free to move it to it's proper place.
In April, our pool was a medium green, the past few weeks it's turned reddish brown. We don't cover it and as a rule get pine needles, pollen and earth creatures in it. Not such a big problem to vacuum to waste.
This year is different. The green tuned to brown and is actually reddish. Have never seen a red algae before. There is some a few inches up the walls and it's powdery appearing. It floats in the water if it's pushed around too quickly, but so does rust?
Unfortunately, my husband left the metal steps in over the winter, something he hasn't done in the past.
Seems like a lot of rust for two legs of metal to create in a short time., but I'm not a chemist.
This liner needs replacing. Was going to do it this year but change of plans pushes that to next year.
So, my questions are: IS this rust? Is there a red algae?
How to know which and what to do about either? If it's rust, is there more to elimination than vacuuming and washing the vinyl walls?
Thanks in advance for your input.