Tank Sumps

Tank sumps are protective enclosures for pumps, piping and other accessories above the tank top. Tank sumps should be watertight and durable since they will protect the surrounding environment in the event of a piping leak. For nearly 20 years CSI has been perfecting the fiberglass tank sump design and installation process creating the most reliable and contractor friendly sump line available. Our proven technology has been utilized in thousands of installations.



Containment Solutions tank sumps are manufactured using the same technology as our fiberglass tanks. We use a special blend of glass and resin which is carefully metered during fabrication to ensure a consistent wall thickness.


CSI non-corrosive fiberglass tank sumps are light enough to be installed without mechanical equipment, yet durable enough to protect critical components for decades. Tank sumps typically fit on the same truck as the tank which reduce shipping expenses, and like our tanks, CSI sumps carry a 30-year structural and corrosion limited warranty, which is the most comprehensive limited warranty in the industry.



Containment Solutions has earned a reputation for double-wall reliability as a result of our hydrostatic tank monitoring technology. We have simply adapted the same expertise to the fiberglass tank sump. CSI double-wall tank sumps were designed to satisfy current regulations while anticipating future requirements. Unlike competitive products which bond the inner and outer sump walls together with fiberglass fabrics, CSI double-wall sumps are built with 100% separation between sump walls. This open environment

offers an unobstructed pathway for fluid monitoring which means 360º protection and true secondary containment.


To see our Tank Sump Installation video, Click Here

For product literature, drawings, and installation instructions Click Here




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