ABSTRACT
Redevelopment (already considered in Chapters 4 and 6) is usually required for most well cleaning-surging with surge block or air, or jetting for redevelopment. Brushing is an important and useful variation for removing encrustation from shutter screen and open-rock boreholes. See the discussion on well development methods in Chapter 4 (virtually the same procedures as used in rehabilitation) and also other relevant references in our reading list.
