A sump pump crock includes a body including a first portion and a second portion separate from the first portion. The first portion includes one of a tab and an opening, and the second portion includes the other of the tab and the opening. The tab is received in the opening to secure the first portion to the second portion. The body defines a base, a plurality of sidewalls, and a top opening, and a plurality of flanges extend around an outer perimeter of the body. The sump pump crock includes a removeable lid that covers the top opening.

A plastic article useful as a riser for a septic tank or as a water tank article is comprised of a multiplicity of plastic rings which are attached vertically to each other at joints. Ring pairs which alternately have inward and outward sloping conical walls nest within each other for shipment or storage. A lid is shaped for use with the topmost ring to cover the opening irrespective of which conical shape the ring has.

A multi-part sump pump bucket for a sump pump installation is shown and described. The multi-part sump pump bucket may comprise at least two complementing sections which may be united to form an open receptacle, and a cap installable over the complementing sections after assembly of the latter. The open receptacle may include a raised section of floor for supporting the sump pump up off the floor, to assist with liquid pickup. The complementing sections may include flanges bearing holes for receiving fasteners, to assist with assembly of the receptacle. The cap may have openings for a liquid discharge conduit and electrical circuitry.

A manhole base liner (1), in particular for a wastewater manhole, has a base body (2) which comprises a tread surface (3) and at least one pipe connection opening (5). The base body (2) is produced in one piece from flexible material with a wall thickness, with which it can be bent together substantially arbitrarily in at least partial regions.

A manhole base liner (1), in particular for a wastewater manhole, has a base body (2) which comprises a tread surface (3) and at least one pipe connection opening (5). The base body (2) is produced in one piece from flexible material with a wall thickness, with which it can be bent together substantially arbitrarily in at least partial regions.

A kit, and an assembly formed with components of the kit, comprises a fitting for the top of a septic tank or water tank, one or more frusto-conical rings shaped to interconnect with an identical ring to form an undulating wall riser that extends upwardly from the tank top fitting, and a lid. The lid is shaped for multi-purpose use: closing off the opening of either the large end or the small end of a ring/riserwhichever is uppermost, or closing off the fitting when there is no riser. Joints between the rings of the riser, and between a ring/riser and the fitting of a tank, are held together by latching tabs and/or screws. A fitting may be integral with a tank top.

A manhole base liner (1), in particular for a wastewater manhole, has a base body (2) which comprises a tread surface (3) and at least one pipe connection opening (5). The base body (2) is produced in one piece from flexible material with a wall thickness, with which it can be bent together substantially arbitrarily in at least partial regions.

A kit, and an assembly formed with components of the kit, comprises a fitting for the top of a septic tank or water tank, one or more frusto-conical rings shaped to interconnect with an identical ring to form an undulating wall riser that extends upwardly from the tank top fitting, and a lid. The lid is shaped for multi-purpose use: closing off the opening of either the large end or the small end of a ring/riserwhichever is uppermost, or closing off the fitting when there is no riser. Joints between the rings of the riser, and between a ring/riser and the fitting of a tank, are held together by latching tabs and/or screws. A fitting may be integral with a tank top.

A sump pump crock includes a body including a first portion and a second portion separate from the first portion. The first portion includes one of a tab and an opening, and the second portion includes the other of the tab and the opening. The tab is received in the opening to secure the first portion to the second portion. The body defines a base, a plurality of sidewalls, and a top opening, and a plurality of flanges extend around an outer perimeter of the body. The sump pump crock includes a removeable lid that covers the top opening.

A manhole base liner (1), in particular for a wastewater manhole, has a base body (2) which comprises a tread surface (3) and at least one pipe connection opening (5). The base body (2) is produced in one piece from flexible material with a wall thickness, with which it can be bent together substantially arbitrarily in at least partial regions.