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{{TOClimit|2}}
===Header===
==Overview==
As their name suggests infiltration chambers work exclusively to infiltrate stormwater. They are an underground facility and are often used beneath parking lots or playing fields to treat flow routed from other areas.
{{textbox|1=Infiltration chambers are an ideal technology for:
*Installing below any type of surface or landscape
*Receiving and infiltrating large volumes of water}}
Infiltration Chambers.png| Schematic diagram of an underground infiltration gallery
'''The fundamental components of an infiltration gallery are:'''
*Structurally reinforced chambers
*Layers of [[Reservoir_gravel|coarse aggregate]] to bed the chambers and redistribute water.
*[[Pipes|Pipe]]
{{:Feedback}}
{| class="wikitable"
[[category:infiltration]]
! rowspan="2"|System type
! Pipe
! Vaults
! Arched chambers
! Crates
|-
|[[File:SWM Pipe.jpg|frameless]]
|[[File:SWM Vaults.jpg|frameless]]
|[[File:SWM Arches.jpg|frameless]]
|[[File:SWM Crates.jpg|frameless]]
|-
| Materials || Plastic || Concrete || Plastic/concrete || Plastic
|-
| Footprint || Medium || Small || Large || Small
|-
| Stackable || Not usually (can be without infiltration) || Yes || Not usually (can be without infiltration) || Yes
|-
| Onsite assembly || Some || No || Yes || Yes
|-
| Void ratio || 60-65% || 75-85% || 50-65% || 95%
|-
| Maintenance access || Moderate || Excellent || Moderate || Difficult
|-
| Standard strength || H-20 || H-25 || H-20 || H20-HS25
|}
==Planning Considerations==
Both modular systems require a lower bedding layer of angular stone to permit infiltration, and provide a foundation for the installation:
*Plastic modules usually have a parabolic shape to resist the load above. The spaces between the rows of the gallery are then filled with more clear stone to support the overlying infrastructure.
*Concrete modules are often box shaped and can, in some circumstances, be employed without any additional cover. However, a minimum of 20 cm cover is for most applications. Where this cover is (irrigated) topsoil this can support turf grass. Deeper soil is required to support more complex plants.
==Design==
===Sizing===
[[Infiltration: Sizing and modeling]]
===Modeling===
==Materials==
===Chambers===
{{:Infiltration chambers: Specifications}}
===Aggregates===
{{:Reservoir gravel}}
===Other===
*[[Geotextiles]]
*[[Pipes]]
==Construction==
[[Construction]]
==Gallery==
{{:Infiltration chambers: Gallery}}
==External links==
{{:Disclaimer}}
===Plastic chambers===
*[http://stormtechcalc.azurewebsites.net/index.html ADS chambers design tool]
*[http://www.armtec.com/products/product_detail/cutlec-contactor-and-recharger-chambers/161/339/l:eng Armtec]
*[http://echelonenvironmental.ca/stormwater/stormwater-storage/ Echelon]
*[http://cultec.com/products/contactor-recharger-stormwater-chambers/ Cultec]
*[http://nilex.com/products/stormwater-chambers Nilex]
*[http://www.tritonsws.com/ Triton]
===Concrete chambers===
----