Installation of a new Armorock Polymer Product manhole is similar to that of a standard storm drain manhole with a precast base, riser sections and cone or slab top. There is no field application of coatings as the product comes corrosion proof.installation is as follows below:

Polymer manhole arrives on project job-site and is offloaded and inspected:


Precast base is prepared as required for placement in properly excavated and compacted hole. Pipe connections are booted to the polymer manhole in the standard manner or are attached with a coupler as required for retro-fitting:

Precast based is lowered into hole and appropriate pipe connections are made:

Riser sections are added as required for stack out:

Cone section or slab top is added as determined by stack out:

After completing stack out – back fill with normal material used in concrete manholes as required. add grade rings and casting to grade as required by specifications: