You have not "sinned". Metal testing is accurate from the pool store and too expensive to do at home. It's the only test that's accurate from the pool store.. . . Yes, I have sinned and went to the store to get a metals test (TP-100 is coming this week), and it shows 0.3ppm of Iron and 0.2ppm of Copper. I don't think I have a copper problem, but I am wondering if the Iron is causing the dark color?
No added calcium needed. You have a vinyl pool and the water does not leach calcium out of it no matter what the pool store tells you.. . . Hopefully that clears things up and then we can re-test and take care of the calcium and stabilizer (CYA) stuff.
Course correct me if I've got something wrong with my plan of action here!
To increase CYA via granular stabilizer, place the required amount as calculated by the Poolmath calculator into a white sock and place in the poolside skimmer basket. For those concerned about suction flow to the pump, suspending the sock near a return jet or from a floating device will also suffice. Best never to allow undissolved granules to rest directly against the pool surface. Squeeze the sock periodically to help it dissipate. Once dissolved, consider your CYA adjusted to that programmed (target) level. CYA test readings should show a rise in 24-48 hours, however some pools may experience a longer delay to fully register. Best to confirm final CYA in about 5-7 days before adding any more stabilizer/conditioner.
Good job on the new test kit. You have a few things to do now:
1 - Turn off the SWG. Your FC is way too high with no CYA. It's extremely powerful. Let the FC fall.
2 - Add stabilizer for a CYA goal of about 40 ppm for now. Use the sock method. Do that ASAP.
3 - Your pH appears to be high, but that's because of the extremely high FC, so ignore that for now.
4 - Pay no attention to CH and TA at tis time.
5 - Actually, you are not done with the SLAM Process. Your CCs are still elevated and you have not passed an Overnight Chlorine Loss Test correct?
So be sure the pool is not covered and let the sun hit that water to lower the FC count and oxidize the CC. I wouldn't try and OCLT until the FC falls down to about 20 or below. With good sunlight that shouldn't take too long. But no more chlorine for a few days.