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Attenuation Tanks

Attenuation Tanks

Stormsaver Attenuation tanks enable our clients to attenuate and control stormwater. Only when the level of water on site is exponential, does the system begin to attenuate and divert stormwater safely to drain at a controlled flow rate, as specified by the designers.

The tank is a single piece, pre-fabricated system, delivered to site for simple and rapid installation. They come in a range of sizes starting from 1500L (up to ) 150,000L, in a single vessel. Multiple tanks, can also be joined together using interconnecting pipework to create larger volumes if required.

The flow rate from the tanks to the stormdrain will be determined by the site or planning requirements and we provide a hydrobreak to release the water at a controlled rate to the mains drainage.

As with all our attenuation products our tanks can be used in conjunction with our rainwater harvesting system, turning the attenuation tanks into Active Attenuation.


Get an idea of how much a rainwater attenuation system will cost.

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Get an idea of how much a rainwater harvesting system will cost your business or home

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Every day I continue to be delighted with the results that the Stormsaver rainwater harvesting system is delivering. I tell everyone about it! We've even made our water meter public to show how much water we save!

Kelvin Jones, Gorseinon Development Trust