Fantastic work!!
My best friend lives in the Queen City and she's been sending pictures of her outside temperature - yesterday I saw 108
I do not envy you.
You don't need to keep it at SLAM level but you can raise it a little in advance of a high bather load. It's safe for people to swim up to SLAM level so it should be fine. Rain won't cause algae - letting it drop below minimum will. So depending how fast that 12 drops and what your target is, you may have to brave the storms to add more to keep you at your target.
My best friend lives in the Queen City and she's been sending pictures of her outside temperature - yesterday I saw 108
You don't need to keep it at SLAM level but you can raise it a little in advance of a high bather load. It's safe for people to swim up to SLAM level so it should be fine. Rain won't cause algae - letting it drop below minimum will. So depending how fast that 12 drops and what your target is, you may have to brave the storms to add more to keep you at your target.