Soakwells (also called rubble pits or soakage trenches in various forms) dispose of stormwater on site by infiltration. Their capacity must match roof area and local soil permeability — clay soils drain slowly and need much larger systems than sand.
They silt up over years; when a soakwell fills with sediment its effective capacity collapses, and overflow appears in storms that were previously handled easily.
Disposes of stormwater on site through ground infiltration.
Buried in yards, particularly where no street stormwater connection exists.
A CCTV drain inspection is the standard way to confirm whether this is what's happening in your pipes: the camera shows the condition on screen, a locator pinpoints the exact position and depth, and you get a recorded report before any repair decisions are made.
A CCTV drain inspection shows exactly what's happening inside your pipes — no guesswork.