South Australia's drainage is shaped by the reactive clay of the Adelaide plains and a dry climate broken by occasional heavy downpours. The famous Adelaide clay swells and shrinks dramatically, making drainage a structural concern, not just a comfort one.
Adelaide sits on some of Australia's most reactive clay, and the dry-then-deluge rainfall pattern stresses both buildings and drains. French drains protect footings as much as they keep yards dry.
Each area has its own drainage conditions, tap through for local context and recommended installers.
Adelaide's reactive clay soils are notorious for the ground movement they cause, cracking slabs and paths as the soil swells and shrinks with…
Mount Gambier's limestone geology and higher rainfall make for unusual drainage, with water often moving through porous limestone below the surface…
Gawler, on Adelaide's northern edge, shares the plains' reactive clay along with newer estates on cut-and-fill sites. Reshaped ground in growth-area…