No just started using the bags of shock. Normally use bleach but nothing was happening so got the shock. I used 12 bags but I'm switching back to bleach on the advice of this forum. CYA 80 and FC 24 this morning so will add bleach now. One gallon or more?
Please use Pool Math to figure out how much liquid bleach you need to add each time to reach your SLAM level based on your CYA. You will plug in all the current readings and what your target is and the calculator will tell you what to add. Please make sure you use 8.25% as your bleach (if that is what you have). If you wish, we can help you get started with Pool Math, but recommend highly you become comfortable in plugging in your figures. You may also want to create a little cheat sheet. For each gallon of 8.25%, you will increase your FC 5.25 ppm, assuming you have 15,700 gallons.
http://www.troublefreepool.com/calc.html