Downspout and drainage retrofit
Like many others our home sustains a tremendous fight against rain and ground water. The basement was retrofitted many years ago with a perimeter drain and sump pump. The sump pump mainly runs during February, March and April but recently turned on since remnants of Hurricane Florence, beginning September 20th, 2018.
The topography of the site sits lower than the 3 adjacent properties and doesn’t allow surface rain water to flow away from the backyard and leach field. I think the home and septic system should’ve been built 2ft higher than it’s original site plan.
1. 3 rear downspouts drain directly into back yard near foundation causing water to fill basement window basins and overflow into basement.
2. Sump pump discharges onto backyard and into leach field
1. If we divert the water away from the foundation the water will flow directly into the leach field, flooding the leach field.
2. A great big pine is located south of the garage, left side of the home. It’s roots stretch towards the garage and into the back yard. I understand it’s safe practice never to cut the roots of a large tree neighboring adjacent properties. Approx. 5 4″ diameter roots lay perpendicular where we’d need to dig underneath for pipe drainage.
1. This Spring we quickly laid solid corrugated piping diverting 2 rear downspouts towards the front yard, 10ft from the road.
2. We also lengthened the sump pump hose from 10ft to 60ft, wrapping the hose around the home towards the front yard
We created a drainage plan diverting 5 of the 7 downspouts and 1 sump pump discharge towards the front yard. I’d like to attach the downspouts directly into the pipe via 90 degree elbows and Wye’s. Distance between grass and top of pipe approx. 4″.
1. The 4″ pipe might be too narrow for heavy rain storms however if the system works 90% of the time I think it’s successful.
2. We’re located in Massachusetts and freezing temperatures make me ask if attaching the downspouts directly into the pipe is okay.
Any criticism and advice is welcome.
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