This document is the 604B SaniTite HP to RCP Connection (MarMac) Detail. Diagrams and notes explain connection.

The first diagram shows the existing grade, existing RCP pipe, HP pipe to be connected, remove IB bell or spigot and excavate existing grade to avoid soil intrusion and create safe work area.

2nd diagram shows finish grade, double wide MarMac coupler to be wrapped around connection, existing RCP pipe and Class I bedding to support connection and concrete collar.

3rd Section “A-A” diagram shows the double wide MarMac coupler to be wrapped around connection.

Notes state that the connection pipe to be backfilled per ASTM D2321. An internal cylinder may be welded to the pipe to be inserted into the ID of the existing pipe and minimize joint movement.