Calculator: Residential Development - Drainage Soakwell Capacity Calculator Questions

Roof area (Must be connected to Soakwell or Rainwater Tank) - PROPOSED*

Roof area (Must be connected to Soakwell or Rainwater Tank) - EXISTING*

Impervious Paved Area (Intended for soakwell connection) - PROPOSED*

Impervious Paved Area (Intended for soakwell connection) - EXISTING*

Total Site Area*

Soil type*

Design ARI (Select 20-year for Residential Developments)*

Design Rainfall Duration (Select 60min for Residential Developments)*

Soakwell ON/OFF*

The diameter of soakwell (m):*

The depth of soakwell (m):*

Number of Soakwell:*

OSD Pit ON/OFF*

OSD Pit Width (mm)*

OSD Pit Length (mm)*

OSD Pit Depth (mm)*

OSD Pit Detention Depth Δz (m)*

OSD Pit C_d*

PSD ARI Years, 5 minutes (year)*

OSD ARI Years, 5 minutes (year)*

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