Below Grade

Below Grade multi-body transition sumps are some of the most versatile sumps in the marketplace. The epoxy trough eliminates field fiberglass work and the square design offers large piping surfaces. Many combinations of bases and risers available to best suit individual jobsite requirements. The TSM series also features optional collar mount bases for use as tank sumps, expanding the versatility of the product line.

Custom Sizes Available
Various sizes and options are available to meet any job-site or customer specifications upon request.

Versatile
Collar mount bases allow the TSM Series to be used as tank sumps.

Standard Features

100% Fiberglass

100% high-quality, non-corrosive fiberglass provides long-term reliable containment from fuel exposure without voiding warranty, warping, cracking or becoming brittle.

Duo-Molded Technology

Our fiberglass sumps utilizes Duo-Molded Technology. Using premium raw materials with a high glass content, we create two layers of fiberglass, offering superior strength and fuel resistance.

Brite-White Interior

Our signature ‘Brite-White’ interior reflects light for better visibility and makes identifying leak points easier.

Twist-Lok Access Cover

PCI’s tank sumps come standard with the latest generation of our innovative ‘Twist-Lok’ Access Cover. Constructed from injection molded fiberglass, Twist-Lok lids provide a watertight seal with a quick and easy 12º turn.

Part No.	Double Wall	Base Height (A)	Adjustable Height (B)	Overall Height (C)	Width (D)
TSM 484836B	TSMDW 484836B	18”	4” – 18”	32” – 46”	48”
TSM 484848D	TSMDW 484848D	30”	4” – 18”	44” – 58”	48”
TSM 606048D	TSMDW 606048D	30”	4” – 18”	44” – 58”	60”
TSM 606060D	TSMDW 606060D	30”	4” – 30”	44” – 70”	60”
TSM 484836BU	TSMDW 484836BU	18”	4” – 18”	38” – 52”	48”
TSM 484848DU	TSMDW 484848DU	30”	4” – 18”	50” – 64”	48”
TSM 606048DU	TSMDW 606048DU	30”	4” – 18”	50” – 64”	60”
TSM 606060DU	TSMDW 606060DU	30”	4” – 30”	50” – 76”	60”
Options
-3B0	Solid Bottom, No Bonding Kit
-3B1	Solid Bottom, E148CM Epoxy Kit
-3C0*	42” Collar Mount, No Bonding Kit
-3C2*	42” Collar Mount, E142CM / E148CM Epoxy Kit
-3D0**	48” Collar Mount, No Bonding Kit
-3D2**	48” Collar Mount, E142CM / E148CM Epoxy Kit
-3E0**	54” Collar Mount, No Bonding Kit
-3E2**	54” Collar Mount, E142CM / E148CM Epoxy Kit

Additional Accessories (Ordered Separately)

Part No.	Description
EQP-DW-VAC	Vacuum Kit (Required for all Double Wall Sumps)
EQP-IF-5GAL	Interstitial Fluid, 5 Gallons (Required for Double Wall Sumps with Fluid Filled Interstice)
EQP-IF-ADP-PC	Interstitial Fluid Adapter Kit (Required for Double Wall Tank & Below Grade Transition Sumps)

Additional Models and Options Available
* 42″ Collar mount options are available on TSM4848XXU and TSM6060XXU models only
** Only available for TSM6060XXU models
Universal Bottom adds 6″ to height

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Installation Video

Downloads

Brochure Installation Instructions

Approvals

UL® Listed 2447

California Code of Regulation Title 23, Division 3, Chapter 16, Section 2631 (AB 2481/ California VPH)

State of Floria Department of Environmental Protection Approved / Registered Storage Tank System: EQ-203