Section 2: Description
Optional Equipment
2018 Insta-Berm (Frame) Operations Manual
(Version D)
6
We Engineer Solutions
RainDrain Performance
The RainDrain system allows rainfall and water from other sources to be discharged from the berm. The
filtration unit stops all target contaminates, acting as a hydrocarbon selection unit and reducing the
discharged water below 10 ppm hydrocarbon content.
When the filtration unit reaches containment capacity, it will automatically cease to discharge all fluids.
When this occurs the filter cartridge will have to be replaced. Once that is completed, the system is ready
for normal operation.
Important Note
The amount of hydrocarbons present in the secondary containment system will determine the
frequency in which to replace the filter cartridge.
Warning
In the event of a catastrophic failure of a primary containment tank (that is secured within a
secondary containment berm and protected by the RainDrain), the subsequent spill of a significant
amount of fuel will cause the filter to shut down automatically. It is still possible that a small
amount of fuel will escape through the RainDrain because of the higher fuel to water discharge
ratio. This discharge can be trapped in a small discharge pit filled with hydrocarbon absorbent
pads.
