Hydro Jetting in Kent City

Kent's neighborhoods and what was laid beneath them

Kent grew up around the Cuyahoga River, the mills and the railroad, and its oldest neighborhoods, the blocks between downtown and the river, the streets off West Main and the homes along the old rail corridors, date from the 1870s through the 1920s. Those houses have vitrified clay laterals in short jointed lengths and, where there is a basement, a cast iron run through the foundation wall. The neighborhoods around the university that were built out in the 1950s and 1960s may have clay, Orangeburg fiber pipe or asbestos-cement.

A large share of the older housing near campus is now rental property, and laterals under rentals tend to see heavy use and little maintenance. Subdivisions on the city's edges from the late 1970s onward, and most of the student apartment complexes, have PVC laterals that rarely fail beyond a settled joint or a root at the tap.

Kames, clay and the river

Kent's terrain is unusual for the county. The city sits on and among glacial kames, the hills of sand and gravel the ice left behind, interrupted by pockets of clay till and the floodplain of the Cuyahoga. Sand and gravel are easy digging but poor bedding: when a clay joint starts to leak, fine sand washes into the pipe and the ground beneath it erodes, and the lateral sags into the void. In the clay pockets, frost to three feet lifts the pipe instead. The result is the same, a line with bellies that hold water and solids.

The silver maples and pin oaks planted along the older streets, and the sycamores and willows along the river, send roots to every weeping joint. A camera run on a 1920s Kent lateral usually shows root curtains at joint after joint. The oldest parts of the city were served by combined sewers, so during a heavy rain the mains can surcharge and push flow back up a lateral that has lost its grade into a basement near the river.

Picking the method for a Kent lateral

Everything starts with a camera inspection and a locate. If the clay is cracked, rooted and leaking at the joints but still round, cured-in-place pipe lining is the standard fix. The crew cuts roots, hydro jets the line to bare wall, then inverts or pulls an epoxy-saturated felt liner through the run and cures it with hot water, steam or UV light. The result is a jointless pipe that roots cannot enter and that stops sand from washing in.

A liner cannot fix a deep sag, a collapse or an offset the camera cannot pass. For those, pipe bursting is the trenchless option: a pit at the house, a pit near the main, a bursting head that splits the old clay outward and a fused HDPE pipe pulled in behind it. When a single joint has failed on an otherwise sound line, a sectional point repair over that spot is cheaper than lining the whole run and just as durable.

Permits, the right-of-way and inspection

Within the city, the sewer permit and inspection come from Kent's engineering and utility offices, and a pit in the street, sidewalk or tree lawn needs a right-of-way permit as well. Properties just outside the corporation line in Franklin Township may be on Portage County sewer and go through the county water resources department instead. The inspector checks open pits on a bursting job and reviews the post-cure video on a lining job. Rental properties may also need the work noted for the city's housing inspection records.

The day of the job and choosing a crew

Expect a truck and reel at the curb, water off for several hours, and a crew at the cleanout or a small pit by the foundation. Lining is normally a one-day job; bursting may take two with restoration. Ask each bidder for the camera footage, a written method and the product name of the liner or pipe. To compare candidates, find a verified CIPP contractor and look for crews that have worked in Kent's sandy kame soil, where pits need shoring and the liner has to be sized and cured carefully so the sagging line does not get worse.

Hydro Jetting in Kent City

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.

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