In this video I demonstrate bleaching a private water well.  It is usually recommended to do this at least 1 time a year or if the well as been unused for a lengthy period like a long trip when irrigation is not running etc....  This video is for general demonstration purposes and not intended to be specific instruction for your well. The amount of bleach used can vary based on the size of well but is very forgiving.  You can download a combined pdf of 3 detailed how-to guides at the link Below. They include the bleach quantity tables and additional instructions. Note all are Texas State resources, but call for different doses. I use the higher bleach dose.