Peninsula drains fail differently from suburban ones, because the pipe under a South of Broad or Harleston Village house is frequently older than anyone living in it.
Cast iron that has closed up
Original cast iron drain lines scale internally over a century until the working diameter is a fraction of the original. Cabling makes a channel through the blockage and leaves the deposit, which is why the calls come closer together. Jetting cuts the scale back to the pipe wall.
Clay laterals and roots
Downtown has mature live oaks and crepe myrtles with aggressive root systems, and clay lateral joints leak just enough to attract them. Once inside they form a mat that catches everything. Cutting is temporary; lining removes the joints they enter through.
Short-term rentals
Peninsula rental properties see heavy, irregular use by guests unfamiliar with a hundred-year-old drain. Wipes and grease reach lines never designed for them. For managed properties we schedule jetting between bookings rather than waiting for a backup mid-stay.
Camera before jetting on old pipe
Cast iron that has lost wall thickness may not survive high pressure. We look first. Turning a blockage into a failure helps nobody.