Did you find the start up recipe thread?

You can just start in with the recipe when you refill. You will want to monitor your CYA while using dichlor as it adds CYA as well as chlorine. When it gets to around 50ppm, then switch to using bleach instead. Dont check CYA too often; the kit doesn't give you too much of that reagent. Maybe every couple of weeks. (By the way, if you run out of CYA testing reagent, you can always order some of that separately.)