2. Keep adding 2 gallons of PLAIN 8% bleach EVERY night till this is resolved. (Doing so will GREATLY reduce the risk of you developing a swamp in your back yard!)
Unless your water looks bad, I wouldn't worry about adding in the AM. I'm guessing your stabilizer is low, but we won't know till you have a kit.

What would be interesting is to add 2 (or 4) gallons at night, and then test in the AM BEFORE the sun starts hitting the pool. Again, once you have the K2006, we'll be able to tell more.