Tank Solutions — FRP / GRP Tanks
Underground FRP Tank
Buried storage engineered to resist soil load and groundwater buoyancy.
Underground FRP Tank
A burial-rated FRP shell with engineered hold-down and lifting features, manways and vents, in single- or double-wall configuration as specified.
Burial is a structural condition, not just an orientation — an aboveground FRP tank must never be assumed suitable for burial. The design accounts for groundwater buoyancy, soil cover, traffic surcharge, backfill, bedding, anchorage and the installation sequence.
FRP / GRP TanksSpecification
- Construction
- Burial-rated shell, single- or double-wall as specified, engineered hold-downs and lifting features
- Critical checks
- Groundwater buoyancy, soil cover, traffic surcharge, backfill, bedding, anchorage, installation sequence
- Monitoring
- Interstitial monitoring available on double-wall designs
- Resin systems
- Matched to the stored liquid; compatibility confirmed per service
- To confirm per project
- Listing/approval scope where required, site geotechnical and groundwater data, traffic rating
Where It’s Used
Frequently Asked Questions
Can an aboveground FRP tank be buried to save cost?
No — burial-rated tanks are engineered differently for earth pressure, buoyancy and traffic loads. An aboveground tank must not be assumed suitable for burial.
What site data do you need for an underground tank?
Soil and groundwater conditions, cover depth, any traffic surcharge over the tank, and the installation sequence — these drive the anchorage and wall design.
Other FRP / GRP Tanks Types
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