This document is the 12”-24” Dual Wall HP Storm watertight connection using a Manhole Boot (cored hole or precast) with prefabricated adapter. Diagrams provided.

The top diagram of the 12”-24” Dual Wall HP Storm watertight connection using a Manhole Boot (cored hole or precast) with prefabricated adapter shows the watertight connector (Kor-N-Seal or PSX System), Dual wall HP storm, adapter OD and prefabricated manhole adapter with smooth exterior.

The corresponding prefabricated manhole adapter with smooth exterior table lists the values for pipe size, adapter OD, ADS adapter product codes, PSX: Direct Drive, Cast-A-Seal, Kor-N-Seal Series I or II and Series 306.

The bottom diagram shows the watertight connector (Kor-N-Seal or PSX System), Dual wall HP storm, adapter OD and nyloplast manhole adapter (12”-24” only).

The corresponding nyloplast manhole adapter table lists the values for pipe size, adapter OD, nyloplast product codes, Press Seal Systems PSX: Direct Drive, Cast-A-Seal, Kor-N-Seal Series I or II and Series 306.

Notes state that performance dependent on installation. Ensure that manhole gasket is uniformly seated around structure adapter to prevent differential settlement between the pipe and manhole. The cast-a-seal connection is for use with square manholes only. See standard detail STD-201 and technical note 5.04 connections to manholes and structures for installation recommendations.