For the last month or so, the CH in the pool has been measuring 400 ppm. Today it measured 450 ppm and I don't have a good explanation for where the additional CH came from. I was so surprised I checked a 25 ml sample and counted 10 ppm drops.
No one has added anything with calcium to the pool, expect fill water which measures about 50 ppm. But if I've done the math right I'd have had to evaporate all the water in the pool except a few gallons and refilled with 50 ppm water.
There was a fire in the everglades over the past month which dumped some ash on the deck and I assume in the pool, filtered by the screen cage.
Other than that I can't guess where it came from. Any thoughts?
No one has added anything with calcium to the pool, expect fill water which measures about 50 ppm. But if I've done the math right I'd have had to evaporate all the water in the pool except a few gallons and refilled with 50 ppm water.
There was a fire in the everglades over the past month which dumped some ash on the deck and I assume in the pool, filtered by the screen cage.
Other than that I can't guess where it came from. Any thoughts?