Pipelines And Underground Containment Sumps - Bennett 3000 Series Installation & Operator's Manual

Pipelines and Underground Containment Sumps

General -
The dispenser must be mounted on a concrete foundation. Do not pour concrete around the product
pipes or electrical conduit. The use of a UL approved containment sump designed for the Bennett
Dispenser Model used is highly recommended. Follow the containment sump manufacture's installation
instructions for proper installation. If no containment sump is used, fill the sump area with clean sand or
dirt as far up the product pipe as possible once installation is complete. Use water to pack the sand in
place. See Figures.
Figure 1 - Example of Remote Contained
Figure 2 - Example of Self-Contained
NOTE: All piping must be clean of foreign debris, such as: oil, grease and shavings. All
connections must be tight to prevent leaks.
Swing joints or flex pipe must be used at the ends of the horizontal pipe between the dispenser and the
tank. See Figure. These joints prevent leaks which might develop through ground movement from
settling of the tank, frost heaving of the ground or pump island settling. The joint under the dispenser
also aids proper alignment of the product union or coupling.
NOTE: Make sure the installation conforms to EPA regulations for underground storage tanks.
Underground Piping
17 107929 Rev E 04-24-17