Underground Fiberglas Storage Tanks are a high-strength and long-lasting storage option used to contain drinking water, non-drinking water, wastewater, and chemicals. Fiberglas tanks are built with a robust outer surface that holds up to below ground storage, while their interior fibreglass resins are built to match the liquid being stored in the tank. This creates a system of storage that can hold liquids for increase periods of time without damage to the tank.
Generally, fibreglass tanks are known for their ability to endure corrosion in all types of climates. That being said, some steel tank fabricators construct their tanks with a corrosive-resistant which provides an extra level of defence between the steel structure of the tank and the environment surrounding it.
Compliance regulations essential the use of tanks that feature additional measures to remain watertight. For instance, tanks installed in on or after are required to be “designed to prevent water intrusion.” Tanks for these applications include a multiport spill containment manhole that contains a spill container with fill pipe
During tank removal projects we often observed soil staining that indicated past leaks, predominantly near fittings.
Modern product lines are constructed of double-walled fiberglass and the interstice is electronically monitored for leaks. There are also leak detectors which monitor fluid pressure and will shut down the flow of product in the event of a line leak.
Overfills occur when a tanker truck delivers product to the underground storage tank. The fill ports for older steel tanks merely consisted of a pipe sticking up out of the ground.
The tanker truck operator connected a hose to the fill pipe to transfer the product from the truck to the tank. If the tank became full, there was a shutoff device to stop the flow of product; however, it was not unusual for some overflow product to spill into the ground around the fill port when the hose was disconnected.
Modern fiberglass tanks and lines are double-walled and employ interstitial monitoring devices to detect leaks.
Most leaks occur due to incorrectly constructed fittings or due to improper installation which allowed the fiberglass to flex and crack.
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