Re: LAST DITCH EFFORT....and I don't know what to do now
OK, no more CalHypo You were at 380 before you did that, so you are probably way too high. You want bleach, lots of bleach. 10 or 12.5% chlorinating liquid would be better, but I don't know about sources in PA.
Go to WalMart tomorrow. Buy lots of bleach. They will think you are crazy, but you need it. Buy stabilizer, but don't put it in the water just yet, I want to test something.
When you get home with the pump running add 2 gallons of the WalMart bleach. 30 minutes later test the water for chlorine. As you opened the pool with no CYA (it was there last year, correct?) it had ot go somewhere. There is a bacteria that can consume CYA and at times convert it to ammonia. If after 30 minutes the FC is back down to "0" you have ammonia in the water. The way to get rid of ammonia is the same as getting rid of algae, chlorine. But, ammonia consumes a lot of chlorine as it is oxidized, so you will be going through a lot, quickly. Ammonia will consume the chlorine almost as quickly as you pour it in the water. But, once the chlorine begins to hold and you get a reading the ammonia is generally gone.
Once we have verified no ammonia, or you have removed it with bleach you need to add CYA via the sock method to get your level up to 30. It won;t registeron the test for a week, so don't bother testing. Just put the correct amount in a sock and hang it in front of a return.
Now the SLAM begins. The pump should run 24/7
With a CYA of 30 your target for FC is 12. maybe stretch that to 15 at times, but 12 is your goal. Starting with "0" FC that is 3 121oz bottles of 8.25% bleach. Wait at least an hour and test for FC again and add whatever chlorine Pool Math tells you you need to get back to 12. You will repeat this multiple times a day until your pool is clear. At least once a day you need to brush the entire pool.
A SLAM takes a lot of effort, but when you are done you will have a beautiful pool.