Am I Super-Shocked (30 PPM enough) ?

[Watermom]

Thank you for providing the information.

You are not quite ready yet to go into maintenance mode. You must continue to keep the high cl until you can go from sundown one evening to sunup the next morning without losing more than 1ppm of cl. The fact that you are losing so much overnight means you are still fighting something and need to continue shocking. With a CYA of 35, you need to shock up to 15ppm. Every time you test, add enough chlorine to get back up to 15. In your pool, each gallon (4 quarts) of 12% chlorine will add about 4.4 ppm.

After you are able to pass the overnight test, then you need to maintain your chlorine reading between 3-6 all the time or you'll risk another algae bloom. Since your CYA is only 35, you can use some of the Trichlor pucks for a short time, but when your CYA hits about 50, no more pucks. Stabilizer (CYA) stays in the pool all summer and sometimes even over the winter so you shouldn't have to mess with it any more after it hits 50. (FYI -- For every 10ppm of chlorine that a trichor puck adds, it also adds 6ppm of CYA.)

Your pH and alk are both fine.

You also need to continue with the 24/7 filtration until eveything is all cleared up and you pass the overnight test.

You are getting there. Don't quit too soon or you'll be right back where you started!

Hope this helps.