Draining can only be done if it can be done safely without risking floating the pool.
What was the calcium hardness before the acid was added?
There might be copper in the water from the heat exchanger, but it's hard to tell.
I would get the TA up to about 60 and then retest everything including the copper level.
What was the calcium hardness before the acid was added?
There might be copper in the water from the heat exchanger, but it's hard to tell.
I would get the TA up to about 60 and then retest everything including the copper level.