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2018-11-09T16:03:32Z

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[[Datei:RWV_rigolenKleinkl.jpg|miniatur|400px|Trenches behind small wastewater treatment systems]]
{| class="wikitable"
|-
! colspan="3"| Required wall area (m2/inhabitant value PE):
|-
| colspan="2"|1 m2 / PE to 1.5 m2 / PE with:|| Sand-gravel mixture, sand, light silty sand
|-
| colspan="2"|2 m2 / PE to 2.5 m2 / PE with:|| Silt (also light clay), sand-silt mixture, stone-loam mixture
|-
! colspan="3"| Required number for example of DRAINMAX Tunnel:
|-
| Base element || colspan="2"|2.25 m length x 0.8 m heigth x 2 sides
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| As ||colspan="2"|= 3.6 m2 per tunnel without front walls
|-
|
|-
|PE|| to 1.5 m²/PE || to 2.5 m²/PE
|-
|4 || 1 pcs.|| 2 pcs.
|-
|8 || 1 pcs.|| 4 pcs.
|-
|12|| 3 pcs.|| 6 pcs.
|-
|16 || 4 pcs.|| 8 pcs.
|}
A specified calculation must be done with other soil conditions and higher PE values.

Translations:Versickerung und Retention/156/en - Versionsgeschichte

Sabrina: Die Seite wurde neu angelegt: „Trenches behind small wastewater treatment systems {| class="wikitable" |- ! colspan="3"| Required wall area (m…“