I use the HTH 6 way test kit.

I have a smaller Intex AG pool that holds approximately 1000 gallons. Its been set up for about 3 weeks and I've been following the super simple pool chemistry recipe from pool doc. I've been using 7.86% bleach. I test Cl and pH every morning and the readings have been steady at 2-3ppm Cl and 7.8-7.9 pH. On days I'm going to have 2 or 3 toddlers swimming, I test the water again before they swim to make sure there's sufficient levles to handle any accidents they may have. The second tests have shown Cl at almost 0 every time. I tried testing CYA level but the water sample never turns cloudy after adding the test cbemical like it should. I now understand that this means my CYA levels are just too low for the test to read. I began using dichlor shock 2 days ago, I know it contains stabilizer also. My question is this: how long should it take for the dichlor to add enough stabilizer to the water to bring my CYA level up high enough to test for it. Also, do you suggest purchasing a seperate stabilizer to bring CYA up or just rely on the dichlor to give me the stabilizer I need. If you do suggest a stabilizer, would HTH stabilizer and conditioner from Walmart be ok to use. (Since its in stock, affordable, and I don't have enough time left in the summer season to have something shipped to me)