Yeah, with a CYA of 71 you'll need to get your FC to 20ppm and keep it there to kill what's in your water.

It's so hard when the little ones are so sick. Do you know what she has? If it's a water-borne infection maybe she should be in a hospital or at least seen. I have a 5 year old and it rips us up when he gets hurt or sick.

All of us will do everything we can to help you make sure your water is never dangerous again.

Carl