Tank Sumps

Tank Sumps

With options including 42” or 48” diameter, medium or deep burial, cylindrical or octagonal base, bottom or no-bottom, single-piece or two-piece configuration, and single wall or double wall construction, you are able to select the exact tank sump design to meet your specific site needs.

  • Each fiberglass tank sump includes a sump base, a riser, a reducer collar (factory-fiberglassed to the riser), and watertight sump shield with strap-down cover.
  • Available in 42” and 48” base diameters.
  • Reducer collars and reducer sump shields allow any tank sump to fit under a 36” manway while providing a 30” diameter clear opening for easy access to equipment.
  • Constructed from rugged ¼” thick, three-layer, hand layup fiberglass reinforced polymer (FRP).
  • White gel coat interior provides a vapor and watertight barrier and superior visibility.
  • Single wall models are available with or without bottom for various mounting options.
  • Double wall models are only available with a bottom for mounting to tank collar.
  • Double wall models are shipped under vacuum with a vacuum gauge installed for verification at site of sealed interstitial.
  • Octagonal base sumps feature a two-piece design that eliminates confined spaces and gives installers full access to the containment during installation.
  • Once equipment installation is complete, the two-piece design is connected using a fiberglass seam kit (ordered separately) to ensure a seamless, watertight joint.
  • Eight flat panels are molded into the bottom section of octagonal base sumps to provide 90° pipe entries.
  • The watertight sump shield keeps liquid out of the containment space during normal operation while allowing easy access to the containment space for maintenance or inspection.
  • Six strap down toggles and internal D-gasket ensure the cover stays in place.

Components

  1. Base
  2. Riser
  3. Reducer collar
  4. Sump shield
  5. Cover (gasketed)
  6. Strap-down toggles
  7. Flat panels

42” Single Wall - Medium Bury - Octagonal Two-Piece Collar Mount Base

  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Medium bury depth: 45”
  • Sump base depth: 15”
  • Sump base diameter: 42¼”
  • Inside diameter: 39¼”
  • Flat panel width: 12”
  • Flat panel height: 9”
  • Field height adjustment: 12”
Item Number Long Description
TM4236-0/0-OC-S 42" Single Wall - Medium Bury - Octagonal Two-Piece Collar Mount Base
  • The sump base comes with an open bottom that is ideal for installations with a tank collar in place.
  • Download the Datasheet for Dimensions drawing.

42” Single Wall - Deep Bury - Octagonal Two-Piece Collar Mount Base

  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Medium bury depth: 65”
  • Sump base depth: 15”
  • Sump base diameter: 42¼”
  • Inside diameter: 39¼”
  • Flat panel width: 12”
  • Flat panel height: 9”
  • Field height adjustment: 12”
Item Number Long Description
TD4236-0/0-OC-S 42" Single Wall - Deep Bury - Octagonal Two-Piece Collar Mount Base
  • The sump base comes with an open bottom that is ideal for installations with a tank collar in place.
  • Download the Datasheet for Dimensions drawing.

42” Single Wall - Medium Bury - Octagonal Two-Piece Base with Bottom

  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Medium bury depth: 45”
  • Sump base depth: 15”
  • Sump base diameter: 42¼”
  • Inside diameter: 39¼”
  • Flat panel width: 12”
  • Flat panel height: 9”
  • Field height adjustment: 12”
Item Number Long Description
TM4236-0/0-OB-S 42" Single Wall - Medium Bury - Octagonal Two-Piece Base with Bottom
  • The sump base comes with a solid fiberglass bottom that is ideal for installations with an existing tank fitting adapter or tank manway adapter in place.
  • Download the Datasheet for Dimensions drawing.

42” Single Wall - Deep Bury - Octagonal Two-Piece Base with Bottom

  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Deep bury depth: 65”
  • Sump base depth: 15”
  • Sump base diameter: 42¼”
  • Inside diameter: 39¼”
  • Flat panel width: 12”
  • Flat panel height: 9”
  • Field height adjustment: 12”
Item Number Long Description
TD4236-0/0-OB-S 42" Single Wall - Deep Bury - Octagonal Two-Piece Base with Bottom
  • The sump base comes with a solid fiberglass bottom that is ideal for installations with an existing tank fitting adapter or tank manway adapter in place.
  • Download the Datasheet for Dimensions drawing.

42” Single Wall - Medium Bury - Round Single-Piece Collar Mount Base

  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Medium bury depth: 54”
  • Sump base diameter: 42¼”
Item Number Long Description
TMA4236-0/0-RC-S 42" Single Wall - Medium Bury - Round Single-Piece Collar Mount Base
  • The sump base comes with an open bottom that is ideal for installations with a tank collar in place.
  • Download the Datasheet for Dimensions drawing.

42” Single Wall - Deep Bury - Round Single-Piece Collar Mount Base

  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Medium bury depth: 70”
  • Sump base diameter: 42¼”
Item Number Long Description
TDA4236-0/0-RC-S 42” Single Wall - Deep Bury - Round Single-Piece Collar Mount Bas
  • The sump base comes with an open bottom that is ideal for installations with a tank collar in place.
  • Download the Datasheet for Dimensions drawing.

48” Single Wall - Medium Bury - Round Single-Piece Collar Mount Base

  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Medium bury depth: 41”
  • Sump base diameter: 48”
Item Number Long Description
TMA4836-0/0-RC-S 48" Single Wall - Medium Bury - Round Single-Piece Collar Mount Base
  • The sump base comes with an open bottom that is ideal for installations with a tank collar in place.
  • Download the Datasheet for Dimensions drawing.

48” Single Wall - Deep Bury - Round Single-Piece Collar Mount Base

  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Medium bury depth: 65”
  • Sump base diameter: 48”
Item Number Long Description
TDA4836-0/0-RC-S 48" Single Wall - Deep Bury - Round Single-Piece Collar Mount Base
  • The sump base comes with an open bottom that is ideal for installations with a tank collar in place.
  • Download the Datasheet for Dimensions drawing.

48” Single Wall - Medium Bury - Octagonal Two-Piece Base with Bottom

  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Medium bury depth: 45”
  • Sump base depth: 28½”
  • Sump base diameter: 48¼”
  • Inside diameter: 42”
  • Flat panel width: 15”
  • Flat panel height: 21”
Item Number Long Description
TMA4836-0/0-OB-S 48" Single Wall - Medium Bury - Octagonal Two-Piece Base with Bottom
  • The sump base comes with a solid fiberglass bottom that is ideal for installations with an existing tank fitting adapter or tank manway adapter in place.
  • Download the Datasheet for Dimensions drawing.

48” Single Wall - Deep Bury - Octagonal Two-Piece Base with Bottom

  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Medium bury depth: 65”
  • Sump base depth: 28½”
  • Sump base diameter: 48¼”
  • Inside diameter: 42”
  • Flat panel width: 15”
  • Flat panel height: 21”
  • Field height adjustment: 12”
Item Number Long Description
TDA4836-0/0-OB-S 48" Single Wall - Deep Bury - Octagonal Two-Piece Base with Bottom
  • The sump base comes with a solid fiberglass bottom that is ideal for installations with an existing tank fitting adapter or tank manway adapter in place.
  • Download the Datasheet for Dimensions drawing.

48” Single Wall - Medium Bury - Octagonal Two-Piece Collar Mount Base

  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Medium bury depth: 45”
  • Sump base depth: 28½”
  • Sump base diameter: 48¼”
  • Inside diameter: 42”
  • Flat panel width: 15”
  • Flat panel height: 21”
Item Number Long Description
TMA4836-0/0-OC-S 48" Single Wall - Medium Bury - Octagonal Two-Piece Collar Mount Base
  • The sump base comes with an open bottom that is ideal for installations with a tank collar in place.
  • Download the Datasheet for Dimensions drawing.

48” Single Wall - Deep Bury - Octagonal Two-Piece Collar Mount Base

  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Medium bury depth: 65”
  • Sump base depth: 28½”
  • Sump base diameter: 48¼”
  • Inside diameter: 42”
  • Flat panel width: 15”
  • Flat panel height: 21”
  • Field height adjustment: 12”
Item Number Long Description
TDA4836-0/0-OC-S 48" Single Wall - Deep Bury - Octagonal Two-Piece Collar Mount Base
  • The sump base comes with an open bottom that is ideal for installations with a tank collar in place.
  • Download the Datasheet for Dimensions drawing.

42” Double Wall - Medium Bury - Octagonal Two-Piece Collar Mount Base

  • Min. manway diameter: 36"
  • Clear opening diameter: 30"
  • Medium bury depth: 45"
  • Sump base depth: 15"
  • Sump base diameter: 42¼"
  • Inside diameter: 39¼"
  • Flat panel width: 12"
  • Flat panel height: 9"
  • Field height adjustment: 12"
Item Number Long Description
TM4236-0/0-OC-V 42" Double Wall - Medium Bury - Octagonal Two-Piece Base with Bottom
TM4236-0/0-OC-H 42" Double Wall - Medium Bury - Octagonal Two-Piece Base with Bottom

48” Double Wall - Medium Bury - Octagonal Two-Piece Collar Mount Base

  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Medium bury depth: 45”
  • Sump base depth: 28½”
  • Sump base diameter: 48¼”
  • Inside diameter: 42”
  • Flat panel width: 15”
  • Flat panel height: 21”
Item Number Long Description
TM4836-0/0-OC-H 48" Double Wall - Medium Bury - Octagonal Two-Piece Base with Bottom
TM4836-0/0-OC-V 48" Double Wall - Medium Bury - Octagonal Two-Piece Base with Bottom

48” Double Wall - Deep Bury - Octagonal Two-Piece Collar Mount Base

  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Deep bury depth: 65”
  • Sump base depth: 28½”
  • Sump base diameter: 48¼”
  • Inside diameter: 42”
  • Flat panel width: 15”
  • Flat panel height: 21”
  • Field height adjustment: 12”
Item Number Long Description
TD4836-0/0-OC-H 48" Double Wall - Deep Bury - Octagonal Two-Piece Base with Bottom
TD4836-0/0-OC-V 48" Double Wall - Deep Bury - Octagonal Two-Piece Base with Bottom

Watertight Sump Shield Packages

Item Number Long Description
TSS-4236 Watertight Sump Shield Packages
TSS-4836 Watertight Sump Shield Packages
TSS-XS36 Watertight Sump Shield Packages
  • Used for repair and replacement work or if the tank sump or riser is provided by the tank manufacturer. Provides a watertight entry point for standard 42” and 48” tank sumps. Includes sump shield with strap-down cover and riser reducer.

Fiberglass Seam Adhesive Kit

Item Number Long Description
FIBERGLASS-KIT Fiberglass seam kit for one seam - includes: matte, resin, putty, catalyst, ½" x 3" roller, 2" brush, quart cups (qty 3), stir sticks (qty 2), squeegee, glove - size large (qty 2 pairs)

Fiberglass Tank Sump Replacement Parts

Item Number Long Description
TSS-36 36" watertight sump shield lid, with toggles
602226906 42" watertight sump shield lid, with toggles
602212001 Sump shield lid gasket for 36" sump shield lid
602212002 Sump shield lid gasket for 42" sump shield lid
602221902 Sump Adapter for 42" sump base to 36" lid Adapter
602221904 Sump Adapter for 42" sump base to 42" lid Adapter
602226901 Sump Adapter for 48" sump base to 36" lid Adapter
602330901 Bracket assembly, attaches on the riser Adapter (bottom)
602331001 Rubber pull latch