In a 26K gallon pool, each 3.5 quarts of 6% bleach will raise your Cl by just over 2 ppm, and with no stabilizer (CYA), you want to keep 3-6 ppm in your pool. Keep in mind that until you get stabilizer in the pool, the sun will eat up the chlorine very quickly, so you may need to add more 2-3 times daily--just don't let it get to zero.

If the trichlor tabs do not contain copper, and if your pH is well above 7.0, then you can use the tabs, they wil both add chlorine and CYA, and lower your pH. Careful, though, not to let the pH get below 7.0. You can use Borax or aerate the water to bring the pH back up. What is the ingredient in the super shock-it?

If you'll get a test kit, even if it's the 6-way drop kit from WalMart, or have the pool store test, it would be best to go ahead, run a set of tests, and post numbers here--then we can help you go from there.

Janet