Hydro Jetting in Columbus

Columbus housing by era, and the pipe that came with it

The neighborhoods inside the I-270 loop tell the story of the sewer lateral in Columbus. German Village, Olde Towne East, the Short North, Clintonville and the older parts of the Hilltop were built between the 1880s and the 1930s and were plumbed with vitrified clay tile in short lengths, sometimes with a cast iron run under the house. The post-war ring, from Linden and the Northland tracts to Whitehall, Westgate and the streets south of Bexley, went in during the 1950s and 60s with clay or early bituminous-fiber pipe and cast iron under slab houses. The suburban belt of the 1970s onward, out through Dublin, Hilliard, Gahanna and Reynoldsburg, used plastic pipe that fails less often but is not immune to crushing, bellies and builder mistakes.

Each era has its own failure pattern. Clay joints let roots in and shift with the soil. Bituminous-fiber pipe, where it survived, goes oval and delaminates. Cast iron under a slab channels out along the bottom. Plastic laterals fail at the connection to the cast iron stub, at a crushed spot under a driveway, or where a belly formed in soft backfill.

Soil and water in Franklin County

Columbus sits on glacial till, mostly clay with pockets of sand and gravel along the Scioto and Olentangy corridors. Clay swells and shrinks with the seasons, and in a wet spring it holds water against the pipe for weeks. Laterals here are often deep, eight to twelve feet in the older neighborhoods where the mains were laid deep to drain basements, which makes an open trench a shored, dewatered excavation rather than a quick dig. The city's street trees, especially the maples and sycamores in Clintonville and the near east side, are the other constant: root intrusion at clay joints is the most frequent finding on a Columbus sewer camera inspection.

Sewers and permits

The City of Columbus Division of Sewerage and Drainage operates the sanitary and combined systems inside the city; the older core still has combined sewers that carry storm and sanitary flow together, which is why a marginal lateral backs up in a downpour. Suburbs such as Bexley, Upper Arlington, Worthington and Grandview Heights maintain their own local sewers. In practice the homeowner is responsible for the lateral from the house to the connection at the main, including the part under the tree lawn and sidewalk. Repair work needs a plumbing permit, and anything in the right of way needs a separate permit and an inspection before the hole is closed. A good contractor pulls both and schedules the inspection; if a quote does not mention permits, ask.

Choosing the trenchless method

• Sewer pipe lining fits the classic Columbus lateral: clay tile with root-intruded, slightly offset joints that still holds shape and grade. A cured-in-place liner from the basement cleanout to the main seals every joint in one pass and leaves a smooth, jointless pipe.
• Pipe bursting fits a collapsed section, a long belly, or a line that needs to be upsized. Two small pits, one at the house and one at the main, and the new fused polyethylene pipe follows the old path.
• Sectional point repair handles a single defect, such as one joint crushed when a driveway was poured over it or the transition from cast iron to clay at the foundation.

Deep laterals and combined sewers make Columbus a strong case for trenchless. Digging to a main twelve feet down under a street with a permit, traffic control and restoration costs far more than the pipe itself; lining or bursting leaves all of that alone.

What to expect on the day

Hydro jetting first to clear roots and scale so the camera can see the pipe wall and, if lining, so the resin bonds to clean pipe. Then the camera pass and a locator marking depth and position on the lawn. Lining runs from an existing cleanout or a small access at the foundation and is normally done in a day, with the water off for a few hours during the cure. A post-repair camera pass records the finished line, and the city inspects any work in the right of way before backfill. Keep that video.

Hydro Jetting in Columbus

What a jetter does that a cable cannot

A hydro jetter pushes water through a nozzle at several thousand PSI. Rear-facing jets pull the hose down the line and scour everything off the pipe wall: roots, grease, sludge, mineral scale, and the rust flakes inside old cast iron. A cable machine drills a hole through the blockage and leaves the rest on the wall, which is why cabled lines re-clog on a schedule.

Where it fits in a repair

Jetting is step one before lining, because a liner has to bond to clean pipe, and step one before an honest camera inspection, because a line full of roots or scale hides its own condition. It is also legitimate maintenance on its own for a structurally sound line that roots keep finding.

When a line should not be jetted

Cast iron that is paper-thin at the bottom can be opened up by an aggressive descaling pass. A collapsed clay section will not let the hose through. Orangeburg can delaminate under pressure. An experienced operator checks the line first, matches the nozzle to the material, and stops if the pipe is not holding up.

Maintenance versus repair

If the camera shows sound pipe, annual or semiannual jetting is a cheap way to stay ahead of roots. If it shows open joints, channeled cast iron or offsets, jetting is a stopgap and the money is better spent on lining, which removes the joints the roots are using.

ZIP codes served in Columbus

Hydro Jetting is available throughout Columbus, including ZIP codes 43085, 43201, 43202, 43203, 43204, 43205, 43206, 43207, 43209, 43210, 43211, 43212, 43213, 43214, 43215, 43216, 43217, 43218, 43219, 43220, 43221, 43222, 43223, 43224, 43226, 43227, 43228, 43229, 43230, 43231, 43232, 43234, 43235, 43236, 43251, 43260, 43266, 43268, 43270, 43271, 43272, 43279, 43287, 43291.

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