Silt Management

Over the last 15 years, we have seen a huge increase in the amount of modular/crate type systems and even though these systems have
developed significantly, there is still no real solution or design addition in the manufacture that will prevent the ingress of silt into the structure and furthermore once the silt is inside the structure, it cannot be removed.

Why You Need Silt Management

Our silt sentinel range which features 3 very effective Silt Traps have been designed to be installed upstream of crate modular attenuation systems.

Failure to install some form of suitably silt management system/silt trap will, without doubt, mean that the sustainability of the attenuation system is ‘dramatically reduced’.

In some smaller volume attenuation and soak-away crate systems this could mean the system would need to be replaced anywhere from 2 to 5 years if the silt is allowed to ingress into the system and this is further exasperated if the site is near to the coast or is heavily landscaped, which can bring the life expectancy down even further.

The use of a Silt Management system can prevent up to 99% of silt passing into the system.

300 series

The Silt Sentinel 300 series is a small heavy duty silt trap with a removable filter basket under the inlet that will catch the silt in the flow. This product is ideal to locate in the surface drainage runs, between the downpipe and the connecting manhole before the attenuation system. This silt trap will only prevent silt entering the system if the filter bucket and sump are cleaned out regularly.

The 300 series comes with 110mm pipework as standard and like all of our silt traps is manufactured from HDPE twinwall which can be installed in as dug or granular surround unlike most other silt traps in the market.

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500 series

The Silt Sentinel 500 series is a larger version of the 300 series. This heavy duty silt trap again has the option of a removable filter basket that sits under the inlet that will catch the silt in the flow. This product is ideal to locate at the base of larger down pipes on industrial buildings or as the smaller 300 series unit, located in the surface drainage between the down pipes and the connecting manhole before the attenuation system. Again this product will only prevent silt entering the system if the filter bucket and sump is cleaned out regularly.

The 500 series unit comes with the option of 110mm or 160mm pipework and like all of our silt traps is manufactured from HDPE twinwall which can be installed in as dug or granular surround unlike most other silt traps in the market.

The invert of this unit can be extended if necessary but we recommend that this is no more than 300mm for access and maintenance purposes.

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Filter Trap

The Silt Sentinel Filter trap is an advanced
heavy duty Silt Trap which is designed in sucha way that it will trap up to 99% of silt from the surface water flow. This is because as well as the primary silt basket, the filter trap has a secondary fine screen filter which will filter out much finer silt that may pass into the system.

This model is designed to be installed in line before or as the last manhole before the attenuation system.

It comes with 160mm en1401 pipework as standard but has the option of 150 or 225mm twinwall pipework if required. Again like all of our silt traps the filter trap is manufactured from HDPE twinwall which can be installed in as dug or granular surround unlike most other silt traps in the market.

The invert of this unit can be extended if necessary but we recommend that this is no more than 300mm for access and maintenance purposes.

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