Tank Sumps

Overview

Watertight, Easy-to-Install, Custom Tank Top Containment

Our extensive offering of world-class fiberglass tank sumps provide you with a solution for virtually any type of tank top containment. Manufactured using only the highest quality fiberglass reinforced polymer (FRP), these sumps come complete with a watertight sump shield and gasketed cover with strap-down toggles to keep your containment free from costly liquid intrusion


Highlights:

  • 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.

Specs:

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


Order Info:

 

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”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits Recommended
TM4236-0/0-OB-SSingleMedium42361

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”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits Recommended
TD4236-0/0-OB-SSingleDeep42361

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 – 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”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits Recommended
TM4236-0/0-OC-SSingleMedium42362

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”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits Recommended
TD4236-0/0-OC-SSingleDeep42362

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 – Round Single-Piece Collar Mount Base

 
  • Min. manway diameter: 36”
  • Clear opening diameter: 30”
  • Medium bury depth: 54”
  • Sump base diameter: 42¼”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits Recommended
TMA4236-0/0-RC-SSingleMedium42362

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”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits Recommended
TDA4236-0/0-RC-SSingleDeep42362

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”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits Recommended
TMA4836-0/0-OB-SSingleMedium48362

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”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits Recommended
TDA4836-0/0-OB-SSingleDeep48362

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”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits Recommended
TMA4836-0/0-OC-SSingleMedium48363

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”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits Recommended
TDA4836-0/0-OC-SSingleDeep48363

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”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits Recommended
TMA4836-0/0-RC-SSingleMedium48362

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”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits Recommended
TDA4836-0/0-RC-SSingleDeep48362

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 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”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits RecommendedInterstitial Monitoring Type
TM4236-0/0-OC-HDoubleMedium42362Hydrostatic
TM4236-0/0-OC-VDoubleMedium42364Vacuum

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. Choose between hydrostatic (brine) or vacuum interstitial monitoring options.

Download the Datasheet for Dimensions drawing.

 

48” Double 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”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits RecommendedInterstitial Monitoring Type
TM4836-0/0-OC-HDoubleMedium48363Hydrostatic
TM4836-0/0-OC-VDoubleMedium48364Vacuum

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. Choose between hydrostatic (brine) or vacuum interstitial monitoring options.

Download the Datasheet for Dimensions drawing.

 

48” Double 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”
ModelWall TypeDepthRiser Base Dia. (in)Min. Manway Size (in)Seam Kits RecommendedInterstitial Monitoring Type
TD4836-0/0-OC-HDoubleDeep48363Hydrostatic
TD4836-0/0-OC-VDoubleDeep48364Vacuum

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. Choose between hydrostatic (brine) or vacuum interstitial monitoring options.

Download the Datasheet for Dimensions drawing.

 

Watertight Sump Shield Packages

 
ModelRiser Base Dia. (in)Access Opening (in)Min. Manway Size (in)Seam Kits Recommended
TSS-42364230361
TSS-48364830361
TSS-XS36Xerxes®30361

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 Kits

 
ModelDescription
FIBERGLASS-KITFiberglass 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

ModelDescription
TSS-3636” watertight sump shield lid, with toggles
60222690642” watertight sump shield lid, with toggles
602212001Sump shield lid gasket for 36” sump shield lid
602212002Sump shield lid gasket for 42” sump shield lid
602221902Sump adapter for 42” sump base to 36” lid adapter
602221904Sump adapter for 42” sump base to 42” lid adapter
602226901Sump adapter for 48” sump base to 36” lid adapter
602330901Bracket assembly, attaches on the riser adapter (bottom)
602331001Rubber pull latch