When a storm drain backs up at a Buckhead office park or a residential French drain stops moving water in Marietta, the first question is always the same: do we jet it or snake it? Both tools have been around for decades, both have legitimate use cases, and both are oversold by contractors who only own one of them. This article cuts through the marketing and explains exactly when pipe jetting wins, when a mechanical snake is the better call, and when neither one is the right answer at all.
What Each Tool Actually Does
A drain snake, also called a cable machine or auger, sends a rotating steel cable down the pipe with a cutting head at the tip. The head chops, grinds, or grabs whatever it encounters and the operator feels the obstruction through the cable. Snakes range from handheld units that clear a kitchen sink to truck-mounted machines that handle 12-inch sewer mains.
Hydro jetting, by contrast, uses high-pressure water, typically 2,000 to 4,000 psi at 18 to 80 gallons per minute, delivered through a specialized nozzle. The nozzle has forward jets that cut through blockages and rear jets that propel it down the line while simultaneously flushing debris back toward the access point. Where a snake punches a hole through a clog, a jet scours the entire pipe wall.
When Snaking Is the Right Call
Snakes excel at solid obstructions in smaller diameter pipes. If a tree root has grown through a clay joint on a four-inch sanitary lateral, a cutter head on a sectional cable will chew it out and restore flow in 20 minutes. Snakes are also the tool of choice for retrieving foreign objects, since a jet nozzle will push items deeper while a grabber head will pull them back.
- Tree root intrusion in sanitary or storm laterals under six inches
- Solid blockages like rags, wipes, or construction debris
- Pipes too fragile for high-pressure water, such as deteriorated Orangeburg
- Quick spot clearing where full pipe cleaning is not justified
- Diagnostic probing before deciding on further work
When Hydro Jetting Wins
Jetting dominates whenever the problem is buildup rather than a discrete object. Grease in restaurant laterals, sediment in storm drains, struvite in force mains, and silt in detention pond outfalls all yield to high-pressure water in ways a snake never matches. After a snake clears a centerline path through grease, 90 percent of the grease is still on the pipe wall waiting to close back up; after a jet, the pipe is essentially clean.
Jetting also wins on larger diameter storm infrastructure. A truck-mounted jetter with a chain flail nozzle will clear a 24-inch reinforced concrete pipe of years of sediment in a single mobilization. The Vactor or combo truck pairing of vacuum and jet then removes the dislodged material so it does not just settle 50 feet downstream.
Cost, Speed, and Access
Snaking is cheaper per visit but often more frequent. A typical residential snake call runs $200 to $500 in Metro Atlanta. Hydro jetting a small commercial lateral starts around $500 to $1,000, and full storm drain jetting on a commercial site can run $2,500 to $10,000 depending on linear footage and access. The economics favor jetting when the time between cleanings doubles or triples, which is the usual outcome.
Access matters too. Jetting requires either a cleanout, an open manhole, or pulling a fixture. The truck needs to be within hose reach, generally 400 feet, and water supply needs to be available for refill on longer jobs. Snaking is more flexible in tight basements and crawlspaces where a 1,500-gallon jet truck cannot reach.
The Hybrid Approach: Inspect, Then Treat
The best operators combine both tools with a CCTV inspection. Camera the line first, identify the defect, then deploy the right tool. A blockage that looks like roots on a service call ticket may turn out to be a collapsed section that needs excavation, not cleaning. Jetting a collapsed pipe wastes water and risks blowing out the structure further.
- Pre-CCTV: confirm the problem and rule out structural defects
- Choose snake for solid intrusion, jet for buildup
- Use root-cutting jet nozzles for combined situations
- Post-CCTV: verify cleanliness and document for the owner
- Schedule follow-up based on observed accumulation rates
What to Avoid
Never let a contractor jet a pipe they have not inspected. High-pressure water in a compromised line can wash soil into the pipe and create voids under the surface. Likewise, never snake a pipe repeatedly without asking why it keeps clogging. Three snake visits a year on the same line means a structural problem that no amount of cabling will solve.
Be cautious of bargain pricing on jet work without volume figures. A 4 gpm trailer unit is not a stormwater jetter; it is a residential drain machine. Commercial storm drain cleaning needs at least 40 gpm and ideally combo truck capability to remove debris rather than chase it down the line.
If your storm drains are sluggish or your sanitary lines are calling for service more than once a year, the right answer is rarely more of the same tool. SCA combines CCTV inspection with both jetting and mechanical cleaning to match the method to the problem and keep your lines flowing.