Muffin Monster Manhole – JWC Environmental
Monster Manhole – Pre-Packaged Sewage Grinder
The Monster Manhole is a pre-fabricated sewer manhole with a sewage grinder which is fully assembled and ready to install. This FRP manhole is an excellent solution when a sewage grinder is needed but there is not enough room for conventional installations. Installation is easy – just dig down to the sewer line, create a concrete pad for the fiberglass manhole unit to rest on and tie in the sewer lines.