Why drains block — and why temporary fixes fail
Fat, soap scum and hair build up gradually inside pipework. Wet wipes and sanitary products catch on joints and trap everything else flowing past. Tree roots find clay-pipe joints in older Pretoria suburbs and grow into the line. Collapsed or bellied sections of pipe trap waste at the low point.
Caustic drain cleaners and basic rodding usually punch a hole through the blockage without removing it — so the line re-blocks within weeks. We clear the full bore of the pipe and confirm with CCTV inspection where appropriate.