Pat,

There's not really a ratio but rather you are looking for CC to be .5 or less. CC of 1 or more is an indicator that you Cl is working on something. Shocking should cure it.

Also, for the future, most folks dont use the SWG to shock....it simply puts too big of a load on it....use plain bleach.

Then, let your TC go drift back down in the 3-6 range and keep it there daily. Every now and then, do the test for CC, shocking again if it gets 1 or above. Aside from startup, I have never shocked in two years......keeping the Cl at the right maintenance level really works!

Post up your pool in the pics section. I built mine, too, and everyone likes to look at pics.