Don't know what part of Texas you are in, but in San Antonio Costco, Sam's, & Wallmart have the best bleach price. Be sure and check the strength of the bleach you buy and use that in the Pool Calculator to arrive at how much you need to keep your chlorine level up. The reason you need a good test so you can have confidence in your CYA can be demonstrated by putting the numbers in the Pool Calculator. Using the Warehouse numbers you need to raise the level of Chlorine to 19 which will take 2.25 gal of 6% bleach or Leslies you will need to raise the Chlorine level to 25 which will take 4.75 gal of 6%. If I was trying to meet a deadline, I would add about 2.5 gal of 6% bleach and brush the pool every couple of hours. But before I did that I would add enough Muratic Acid (from Home Depot or Lowes) to bring my PH down to about 7.2 and let that circulate for about 30 min then I would begin the shocking. The range of MA is 22 oz to 31 oz, so I would probably go the 22 oz. The Chlorine will work better if the water is more acidic, but you do not want to go to low. If my pool cleared before my test kit arrived, I would cut the Chlorine back to once a day. You will have to use your own judgment and others may have a different opinion. When you get your test kit, post your numbers and you will get some good advice. In the meantime, reread Pool School and master the Pool Calculator. Good luck.