Infiltration/ attenuation systems

The Marley Waterloc250 cell is ideal for use in either an underground infiltration or attenuation system. 96% of the cell volume is available to store water, minimising the extent of excavation required for the installation. In addition, the innovative design of Waterloc250 enables the cells to be quickly built into layers and configured to suit the area available.

Key benefits

  • Unique nesting ability of cells reduces storage on site and transportation costs
  • Layers are quickly assembled by rotating alternate cells 180°
  • Size (1200mm x 800mm x 290mm high) and modular nature allows for maximum flexibility where space is restricted
  • Exceptional vertical and lateral loading capability
  • Open cell structure allows rapid dispersion of water
  • Range of options making pipe connections quick and easy
  • Four Waterloc250 cells = 1m3 making volume calculation straightforward
  • BBA certification applied for

Waterloc250 specification overview

Colour   Black
 Unit dimensions  Length: 1200mm. Width: 800mm. Height 290mm*
 Weight  12kg
 Void ratio  96%
 Storage volume  250 litres
 Storage capacity  240 litres
 Material  Polypropylene

*Effective depth when installed in multiple layers: 260mm

Waterloc250 key performance criteria

Property   Vertical loading on top face  Lateral loading on side face
Short term characteristic compressive strength  350kN/m2  82kN/m2
Short term load to cause 1mm deflection  47kN/m2  7.1kN/m2

Waterloc250 key characteristics

Waterloc250 has lifting bars and an arrow moulded into the top face. The cells are assembled by rotating them by 180° from the nested stack. The cell connector actually consists of two clips; the ‘pop-out’ clip in the centre is the base cell clip, for securing the base layer, the remainder is the top cell connector, required for the top layer only. No clips are required for the intermediate cell layers.

Pipe connections can be made to allow inlet and outlet connections at any position around the periphery of the tank. A special feature of the spigot connector is a screw fixed mounting plate that enables the geotextile or geomembrane liner to be easily sealed around the connection prior to fitting the pipe. The Marley Inlet chamber also provides a water entry method and / or access for inspection.


 

Waterloc250 cell

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CodeColStdLengthWidthHeightCAD
WLRB250 [BX][BBA]1200800290
 

Waterloc250 base plate

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CodeColStdLengthWidthHeightCAD
WLRP250 [BX][BBA]120080030
 

Waterloc250 cell connector

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WLRC250 [STAINLESS][BBA]

Central pop out forms the base cell connector

 

Waterloc250 pipe connector

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WLRE250 [GX][BBA]
 

Waterloc250 inlet/outlet connector 225mm

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WLRE250L [STAINLESS][OX][BBA]
 

Waterloc250 inlet/outlet connector 300mm

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WLRE250M [STAINLESS][OX][BBA]
 

WATERLOC250 INLET CHAMBER

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UMF21 [BX]400 DWG

UMF22A adaptor tray must be ordered with this item.

 

Adapter Tray

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UMF22A [BX]
 

Riser

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UCR2 [BX]450 DWG
 

INSPECTION COVER AND FRAME

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UCL35 [BX]450 DWG
UCL125 [BX]450 DWG