Hi everyone. This is my 1st post here. In the past 3 seasons I have been fighting a losing battle with my pool. Between chemicals, hundreds of dollars, shoddy workmanship, leaking liners, undersized cartridge filters and the list goes on I decided to take a whole new approach. The BBB Method. I started this year by draining my 18' round 52" vinyl liner pool, about 8600 gal. I purchased a new liner, from a different store and installed it. I replaced the skimmer assembly as the the that was there was for the cartridge filter. I was also having a problem with the pool wall rusting away inside the skimmer opening. I bought a Hayward skimmer assembly with the new butterfly gasket, it should solve that problem. I also bought a 100 lb Hayward sand filter with a 1hp pump, the Matrix PowerFlo. I also upgraded my hoses to 1 1/2" form the original 1 1/4" corrugated hoses. What a difference the past couple of weeks have been.
On to my question. I have some left over "chlorine", about 3 lbs. I would like to use it up before I get some bleach, unless there would be some detrimental effects of its use. I have already upped my TA with baking soda. The TA is 100, PH 7.2 and CL is 1.5. My CYA is 0 as I have not added any yet, I need to buy some first. I do not have a test for cya, ordered Bens kit a couple days ago. The "chlorine" I haven is in 2 tubs, a 1lb tub and a 2 lb tub. They are from the same manufacturer and carry the same name "Quick Tabs", this may give away my source of my troubles in the past. Anyway the chemical names are different.

2lb tub
Active Ingredient
Sodium Dichloro-s-triazinetrione Dihydrate 63%
Inert Ingredient 37%
Total 100%
Available chlorine 56%

1lb tub
Active Ingredient
Trichloro-s-triazinetrione 63%
Inert Ingredient
Sodium carbonate 37%
Total 100%
Available chlorine 56%

I realize the names are different but the available chlorine is the same. I am assuming the inert ingredient is the same. Am I correct and would it be okay to use these up first? The name of "chlorine" in bleach is different again. Are they all the same thing in the end?

Thanks,
Brian