Precast sanitary manholes from Kistner Concrete Products are manufactured in sizes ranging from 48 to 144 inches I.D., or as needed. A properly designed and installed precast concrete manhole system provides suitable watertight performance and provides a long-term solution. They have watertight pipe-to-manhole boot seals for sanitary applications. The use of gaskets between sections per ASTM C443 allows for a tight connection between manhole sections. Structural and watertightness quality assurance/quality control testing as well as vacuum testing is performed to verify the highest level of confidence that the products are manufactured correctly and to specification. 716-508-5594; www.kistner.com.
Manhole Parts and Components - Kistner Concrete Products precast sanitary manholes
May 22, 2019
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