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Infiltration methods

Please note that we are wholesalers of all items on our sites, however we have a trade counter open to all and of course you can always call us and order over the telephone...the humans here are very friendly!

Modular geocellular structures can be used for the control and management of surface water. Most cellular structures are designed to withstand vertical loads of up to 40 tonnes meaning it makes the perfect solution for attenuation or soakaway applications in light trafficked areas. Modular cells are assembled together to form a structure of any shape of size to hold water either from roofs, gutters or surface drains.
Key Benefits
The modular structure can then be wrapped in an impermeable membrane (attenuation) or permeable membrane (infiltration) to control the surface water entering the tank. The units are lightweight and easy to handle and have unique rounded corners to prevent punctures to the membrane during the installation process. With the use of a silt trap and Flow Control device, sediments can be removed before entering the tanks and then discharged at a set rate.
Other types of cells for soakaway and attenuation designs are available

An infiltration cell is generally known as a soakaway, most cellular structures have a minimum 90% void and provide a highly effective solution to surface water problems. For small systems a fleece membrane of 100 grammes is used along side a small silt trap. Larger infiltration systems need larger silt traps, ventillation pipes and on occasions, vortex flow control devices.

Infiltration tunnel from Graf Garantia

Garantia stormwater management Infiltration Tunnel 300 car / load bearing

• Less excavation - less costs.
• High infiltration performance thanks to 3-dimensional direct flow.
• Can be expanded as required. Specifically designed for single or multi family houses or businesses.
• Ideal for self-assembly - weighs just 11 kg.

Earth covering min. 50 cm, max. installation depth 250 cm (from the bottom edge of

Nominal volume: 300 L
Net volume: 100%
Load capacity: For vehicle loading (max. 3,5 t/sqm) with min. earth covering 50 cm, max. earth covering 2 m
Material: Recycling-PP, groundwater-neutral
Dimensions: 1,22 x 0,80 x 0,51 m
weight: approx. 11 kg
Connections: side top: DN 100, 150, 200 and 300
side bottom: DN 100

Sicker tunnel shaft with end plate

Garantia Herkules infiltration shaft 1600 Litre full infiltration package

the Herkules infiltration shaft consists of 2 half shells, snap-on connectors, and a support pipe for underground installation.

Your advantages:

• Great price-performance ratio
• the half shells are stackable, easy to transport. The tank half shells fit through any standard door (80 cm).
• Easy and quick installation
• Save on rain tax

We recommend the underground fine filter as pre-filter.

Polystorm crate

Polystorm and Polystorm Lite are lightweight modular water storage cells with a high void ratio that can be used for either attenuation or infiltration of stormwater in residential, commercial, industrial and retail applications. The system facilitates quick and easy assembly on site where multiple configurations can be formed from standard stock items. A full range of silt traps, flow control units and adaptors complete the system.

Polystorm lite

Polystorm and Polystorm Lite are lightweight modular water storage cells with a high void ratio that can be used for either attenuation or infiltration of stormwater in residential, commercial, industrial and retail applications. The system facilitates quick and easy assembly on site where multiple configurations can be formed from standard stock items. A full range of silt traps, flow control units and adaptors complete the system.

Polystorm 'R'

The new Polystorm-R modular cell is produced from carefully researched and selected recycled materials to provide an environmentally-friendly solution to surface water drainage and storage applications. Meeting the same performance criteria as Polystorm, Polystorm-R has a 40 tonne per square metre compression strength and is ideal for light trafficked and pedestrian applications.

Polystorm installation data sheet

Fleece membrane

Non-woven geotextiles are manufactured by extruding continuous polypropylene filaments into short staple fibers, for processing on one of several non-woven lines. Each line involves the continuous laying of fibers onto a moving conveyor belt to form an unbound web. This web passes along the conveyor to be either mechanically bonded (needle-punched) or thermally (heat) bonded. After bonding, the finished product is wound into a roll.

NW8 fleece membrane, sold in rolls 5.2 metres x 100 metres (520m2)

used in small infiltration and attenuation systems

NW25 fleece membrane, sold in rolls 5.2 metres x 100 metres (520m2)

used in larger, more commercial infiltration and attenuation systems

The Hydro-Valve Flow Control is a self-activating vortex flow control device that provides superior hydraulic performance over conventional flow regulators with features that reduce maintenance requirements. Hydro-Valve Flow Controls harness the energy inherent in the flow field. They have no moving parts and no external energy requirements.

With clear openings up to 600% larger than conventional flow control devices, the risk of blockage is reduced to a minimum. In addition, the unique head/discharge characteristics with high flush and kick-back flow points, reduce storage volume requirements, lowering project costs.

Key Advantages:
No power requirements
Self-activating and self-cleansing
Reduces first flush impact on CSO screens
Reduces upstream storage volume requirements
Highest performing passive flow control available
Full access for rodding and jetting
Simple installation

Back flow prevention valve

A Non Return Valve effectively prevents against backflow into a rainwater, attenuation or storage tank. It operates fully automatically with no external power supply required. The Valve is manufactured from high quality polypropylene and is provided with an overhaul closure lever; by lifting the lever to position 'b' the valve is closed in both directions. It also has a removable lid for easy maintenance and meets the EN13564 standards.

Dimensions:
DN100
Length 287mm
Width 266mm
Height 188mm

Non-Return Backflow Prevention/Check Valve DN100

 

Silt Trap

for use in conjunction with storm water management product range For a full storm attenuation system. Debris, such as leaves, grits and gravels should be collected before passing into a soakaway or attenuation installation. This silt trap is a compact 250mm design with an internal baffle to prevent leaves flowing on the surface of the water, and passing directly into the installation. 110mm spigot connections Size; 250mm Please request details of the lid and frame for use with this trap.

Silt trap with standard lid and frame

Silt trap stainless steel basket filter

Marley silt trap USW30 with inlet filter and optional riser kit

An excellent silt trap for attenuation and infiltration systems.
The unit can be topped with standard square to round or rectangular inspection chamber covers