.75" Foam Bridge w/ Bentonite Sleeve Combo

Combination Bentonite Quick Seal Sleeve & Expanding Foam Bridge threads above the Prepacked Well Screen to provide fast, low permeability annular seal below the water table. The use of the Prepacked Well Screens, Combination Bentonite Quick Seal Sleeves and Expanding Foam Bridge can make well installations go smoother. These wells take the guesswork out of gravel pack and annular seal placement, which can be a problem when working with heaving sands or limited annular space such as with Direct Push Installations. Constructed on 3/4" S40 x 30" PVC Riser Male X Female Flush Thread 8 tpi Bentonite Seal Expanding Sleeve Protective paper sleeve filled with granular bentonite Sleeve breaks down when exposed to water allowing bentonite to hydrate Expanding Foam Bridge is a compressible foam seal, wrapped in a polyethylene sleeve Expands when exiting the bottom of the Direct Push casing PVC abrasion shield polyethylene sediment trap Provides positive placement of a temporary barrier that prevents grout intrusion into the screen interval