Update!
After renting a pump from Home Depot (because my Harbor Freight pump didn't pump fast enough when using the sewer cleanout) I was able to get my CYA down to a 60 (which I double checked) after a full day of pumping and refilling. Around 8pm last night, I proceeded to do the pool math to get my pH down to a 7.3 and I started the SLAM after a trip to Sams Club.
I checked the shock values for my CYA of 60 (CF 24) and added the appropriate bleach. It jumped to 30. I think I don't know how many gallons are in my pool due to the funny shape and weird grading on the bottom of the pool. As I add chemicals, I've tried to do reverse calculations to determine that I'm between 12,000 gallons and 15,000 gallons, but I haven't nailed it yet.
Anyways, last night I checked the shock values 5 times before going to bed without adding any bleach the entire time.
Here they are:
10pm - FC 30 / CC 1
11pm - FC 30 / CC 1
12am - FC 33.5 / CC 1 (this reading confused me)
1am - FC 30.5 / CC 1
2am - FC 29.5 / CC 1
When I woke up today, the pool definitely isn't green!
Progress Pic:
When I woke up, my FC was 22.5 and CC was 0. This confused me, but I had to return that pump to Home Depot, so I used the calculator and added my bleach to keep the shock until I had a chance to talk to you guys. Again, because I think I have the wrong gallons for my pool, the FC ended up at 36.
Then things got weird. I decided I better do all the tests, to see where I'm at.
Here are the results:
pH - 7.8
FC - 36
CC - 0.5
CH - 650
TA - 120
CYA - 80
Ugh... my CYA is at 80. Now, before I did the SLAM, I cleaned my filters. My thought for why my CYA might raise from 60 to 80 is that there was chemicals in the filter that got added back, or I messed up the test. I re-did the test this morning, and got 80 again. So, I'm moving forward with a CYA of 80 and a shock FC of 31. Still way better than 180!
So, now my pool still has visible algae on the walls, and is cloudy. I don't have a vacuum for the pool, so I think that's my next move.
Any advice appreciated, Thanks!