Maintenance

Hydro Jetting vs Snaking: Which One You Actually Need

By San Jose Sewer Line Repair · October 2, 2026 · 5 min read

A drain company's first tool is a cable machine. Its second is a hydro jetter, which costs more and is sometimes sold as if it were always better. It isn't. Each does one job well, and knowing which job you have is the difference between paying $200 and paying $700 for the same result — or paying $200 three times for a problem the jetter would have handled once.

What a cable machine does

A motor spins a steel cable with a cutting head through the pipe. The head bores a channel through whatever is blocking it: a wad of wipes, a soft plug of hair and soap, a root mass. Flow is restored through that channel. The blockage is not removed; it's perforated.

That's exactly right for a soft, one-off clog. It's $150–$350, it takes an hour, and on a line that was fine last year and will be fine next year it's the whole job.

What a jetter does

A jetter pumps water at 3,000–4,000 psi through a hose with a nozzle that has jets pointing backward. The backward jets propel the nozzle down the pipe and scour the wall behind it; forward jets, on some nozzles, break up what's ahead. Different nozzles for different problems: a root-cutting head with a spinning blade, a chain head for cast iron scale, a wide-angle head for grease.

When it's done the pipe wall is clean to its original diameter. Roots are cut off at the joint. Grease is stripped, not tunneled. The camera can see the wall, which is why every honest inspection of a dirty line starts with a jet. It's $350–$800 for a residential lateral in San Jose.

Which one for which problem

The San Jose specifics

Most lines we clear are clay with roots, in the 1950s–70s tracts. A cable takes a root mass down to a channel; the roots regrow from the stumps in months, and the channel closes by the next fall. A jet with a root head takes them back to the pipe wall, and the regrowth takes a year or more. If a line has been snaked twice, the jetter is cheaper by the third visit.

Cast iron under Eichler slabs and older Willow Glen houses builds a rough crust of scale that catches everything. A cable clears the clog and leaves the crust. Descaling with a chain head or a high-pressure jet opens the bore back up and, more to the point, lets the camera see whether the wall underneath is sound or has channel rot along the bottom — which decides whether the line gets lined or left.

Grease is the kitchen problem, and San Jose kitchens generate plenty. The tell is a main line that slows gradually over months rather than blocking suddenly. A cable buys weeks. A hot-water jet strips it.

When neither is the answer

A cable that comes back with mud on it, or a jetter that loses pressure and doesn't return water, is telling you the pipe is open to the soil. Stop, camera, and look for a break. Jetting a broken pipe pushes water into the ground around it and can wash out the bedding under the next section; jetting Orangeburg can finish it. And no cleaning method fixes an offset joint, a belly or a collapse — those are on the repair page.

A line that needs cleaning more than once a year is a line that's telling you something. The camera after the jet is what turns that into a decision: keep jetting for a few years, or line it. The hydro jetting page has the pricing and the maintenance schedule we suggest for root-prone clay under redwoods.

What you'll be told, and what to ask

If a crew arrives with only a cable and the line has backed up before, ask whether a jet and camera would tell you more. If a crew wants to jet a line that has a single soft clog and no history, ask why. And if either one produces a replacement quote without a camera run, ask for the footage. A cleaning is a cleaning; the camera is where the real information is, and it should come with a recording you can keep.

The camera inspection post explains what to look for in that footage. Read it before you approve anything past a cleaning.