Abstract: A field assemblable trailer that has a container having a bottom, a hitch assembly configured to be securable to the bottom of the container, an axle housing configured to be securable to the bottom of the container, a pair of hub and axle assemblies configured to be attached inside the axle housing and a pair of tires on rims configured to attached to the hubs. The hitch assembly, the axle housing, the pair of hub and axle assemblies and the tires on rims comprise a kit which fits inside the container. The kit takes up a minimal room which leaves the container free to accept a larger primary load for safe keeping. When the container is opened the kit is readily identifiable and is capable of converting the shipping container to an enclosed trailer quickly with minimal tools. This can be done while providing protection of the primary load.

Abstract: The present invention is an erosion chlorinator, having a contact chamber with a water inlet flow orifice at the first end and a water discharge orifice in the side wall. Both orifices are in communication with the contact chamber. Seated within the contact chamber is an inverted cone having a narrow end and a wide end. The orifice at the narrow end is in communication with the water inlet orifice. An elongated chlorine tablet chamber is provided, the first end of which is in communication with the second end of the contact chamber and extends into the contact chamber, but is spaced from the wide end of the inverted cone. The second end of the elongated chlorine chamber has a flange around the circumference, an O-ring and an end plate where the O-ring is engaged between the flange and the end plate. This chlorinator may be used in pressurized system.