French Dain。管子用螺纹黑管带眼的,包纱布的。理念是尽量让水在途中渗漏到四周。
-2841999(四友);
2022-6-29{596}(#14655728@0)
Apr 30, 2014 - San Diego drain repair experts suggest the key to great landscaping is good drainage. If you have drainage issues around your home, the perfect solution may be French drains.