I'm so sorry you've had those problems. For future reference, with a 5,000 gallon pool, it's often better to dump and refill, once the pool gets away from you.

1. Maybe I'm missing it, but I didn't see your CYA results. Do you know what your CURRENT stabilizer level is?

2. If you have an Intex SWCG unit . . . DISCONNECT the wires to the copper part.

3. Don't worry about pH, TA, or CH right now. Just CYA.

4. Another question: do your pool walls feel slimy? Vinyl pools almost ALWAYS feel slimy when algae starts growing, and during an algae outbreak.