Rock soak-away for weeping tile
Rock soak-away for weeping tile
(OP)
We have a situation whereby we cannot connect a large residential dwelling storm sewer service (weeping tile drainage) to the existing storm sewer main in the street. The Municipality is allowing us to drain to a rock soak-away pit on the property. We are trying to size this soak-away (depth and diameter) and select the appropriate rock size to use. Dwelling has an 11,000 sf footprint and the watertable is below footing depth, therefore drainage would only occur during rain events. Any tips or references would be appreciated. Thanks.





RE: Rock soak-away for weeping tile
RE: Rock soak-away for weeping tile
How do you size the rock soak-away pit?
RE: Rock soak-away for weeping tile
estimate the rainfall which will infiltrate and impact your foundation drain
Estimate a void ratio for your stone
Size the pit to hold the storm runoff within the voids in the stone
RE: Rock soak-away for weeping tile
http://www.ene.gov.on.ca/envision/gp/4329e_4.htm
The local stormwater utility should be able to provide some guidance.