Hello, I am brand new to the world of pools! This March we started off the season with upgrading our sand filter, draining the pool, giving it a nice bleach bath then refilling. Since then, it has been a hassle keeping it swimmable. We have a great guy who tends to it weekly but we cannot figure out whats different. Our pool turned fluorescent green, now we cant even go 3/4 days without algae and spots showing up. We rub chlorine tablets directly to the spots, nothing. We shock? Nothing. I will be purchasing water testing strips to extend my own knowledge but there is a large corner that is missing tile and looks “rusty”; am I crazy for thinking this could be a cause?
*these 6 photos are from different ends of the pool*
*these 6 photos are from different ends of the pool*