Daron Williams wrote:My question is how does one go about converting an existing septic system into a subsurface constructed treatment wetland? Also, what size would the wetland need to be? My house is just over 1,000 square feet with one bathroom, a kitchen and 3 bedrooms. Currently, there are three of us living in the house - myself, my wife, and my son.
Feidhlim Harty wrote:So your existing system is pump-fed? I can see why you'd rather avoid that if you could - whatever about the codes.
Ok. Do you know the infiltration rate in the soil? Here in Ireland if it takes longer than 90 minutes for clean water to drop 25mm (after a presoak the day before the test and another presoak before the test to allow the soil to reach saturation) then your ground is considered unsuitable for building. You already have a house, so the solution is to find something - anything- that will work ok.
The soil depth above water table and bedrock are also important. Do you know how deep the dry subsoil is?