Drain cleaning tools sort into five jobs: machines that open blocked lines, the cables and cutters those machines carry, jetters that wash lines clean, cameras that show what is happening inside a pipe, and locators that trace a buried line from the surface.
A drain technician is hired to run that kit with judgment — matching machine, cable, cutter and nozzle to the stoppage.
This guide walks the truck category by category.
What's on a drain tech's truck?
The truck is the workshop, and the kit reads as five jobs:
- Cable machines — the stoppage-openers, in the two designs this guide covers: drum and sectional.
- Cables and cutter heads — the line-matched cable, and the head matched to the blockage.
- Hydro jetters — pressurized water that washes grease, sludge and scale off the pipe wall.
- Inspection cameras — the eye inside the line, before the work and after it.
- Locators — surface equipment that traces the line and marks where a repair would go.
None of this is a shopping list, and this page is not a product review: no brands, no model rankings, no spec numbers.
What follows is the equipment literacy the job runs on — what each category is for, how the two machine styles differ, and the decisions you are making when you pick a cable, a cutter head or a nozzle.
The role itself — the calls, the licensing picture, the pay — is covered in our drain technician guide; here we stay on the truck.
The hand-tool side of the bag is a topic of its own, and our plumber tools list covers it stage by stage.
Drum vs sectional machines
Cable machines — the stoppage machines of professional drain cleaning — come in more than one design.
The two this guide covers are the drum machine and the sectional machine, sorted by how the cable is stored and fed, and the design shapes how you work.
A drum machine keeps one continuous cable coiled inside a drum or housing.
The machine turns the cable; the cable feeds off the drum and runs down the line as a single piece, fed automatically or by hand depending on the machine.
Continuity is the point: one cable handles the whole run.
A sectional drain machine builds the same run out of short, stiff sections — you couple a section, feed it in, couple the next.
Sections store compactly and carry easily, and each coupling is a joint you make, and break, in the course of a call.
| Drum machine | Sectional machine | |
|---|---|---|
| Cable storage | One continuous cable, coiled in a drum or housing | Short rigid sections, coupled together as you go |
| How the run is built | The cable feeds off the drum as the machine turns it | Each section joins the run as the cable advances |
| What you handle on a call | A single cable, start to finish | A stack of sections and couplings that grows, then comes back apart |
| Where the skill shows | Feeding, controlling and retrieving the cable so it stays true | Making up and breaking couplings cleanly, section after section |
Which style you will run is a question for your shop — the last section covers what to ask.
What carries between the styles is the core skill: reading the line, feeding the cable, and knowing what the resistance you feel means.
Cable sizes and cutters
Cable is not one-size-fits-all.
It is sized to the line it serves: lighter, more flexible cable works fixture and branch lines — the short runs close to sinks, tubs and laundry standpipes — while heavier, stiffer cable is built for main lines and longer runs.
The machine is built around its cable, so pairing machine, cable and line shapes the work on a stoppage call.
The cable is only half the tool; the head on its end does the work.
Cutter heads sort by what they do to a stoppage.
Cutting heads — saw and blade styles — take on roots and hardened scale.
Auger and corkscrew styles hook soft clogs so the cable can pull them loose.
Retrieving heads grab what should not be in the line at all — the toy, the razor, the ring.
Matching head to blockage is the same judgment as matching nozzle to blockage in jetting: the camera shows what is in the line, and the head you thread on decides how the cable meets it.
Cables and heads are also the wear items of the kit — cable that has taken a kink does not run the way it did, and a dull head does not cut the way it should — which makes them a maintenance question; the Maintenance and safety section picks them up.
Jetters and cameras
The jetter is the washing half of the kit.
Where a cable cuts one path through a stoppage, a jetter drives water down a high-pressure hose and through a nozzle to scour grease, sludge and scale off the pipe wall — and on a heavy stoppage the cable may open the line before the jetter washes it.
The machine classes, the nozzle families and the safety structure around jetting are a guide of their own: see hydro jetting for that side in full.
One number policy on this page: there are no jetter pressure or flow figures here.
The ranges we looked for were not confirmed by the sources we checked, so the ratings worth acting on are the ones printed in your machine's manual — the document that actually travels with the equipment.
The camera and locator are the pairing that turns cleaning into diagnosis.
An inspection camera runs down the line and shows what is inside — the blockage, the break, the belly, the roots — and after the work it shows whether the wall is actually clean.
A locator pairs with it, tracing the line from the surface so a repair can be marked before anyone excavates.
On the training side, NASSCO runs PACP, LACP and MACP classes for pipeline, lateral and manhole assessment, plus ITCP-CIPP training for cured-in-place pipe inspectors.
Whether any of those classes belongs in your training is a question for the shop.
Maintenance and safety
Drain equipment works in sewage and takes abuse, and looking after it is part of the job.
Cable that has kinked or worn and heads that have dulled are the service items to watch, and the cleaning and service intervals for each machine come from the manufacturer's manual and the shop's own program.
A machine that is due for service is a question for the shop before you run it.
Safety on this equipment is real and specific — cable under load, pressurized water, sewage — and this page does not restate safety procedures, because the ones that matter are machine-specific and the industry guidance documents around jetting were not confirmed by the sources we checked.
The authorities are the manufacturer's manual, your employer's written procedures, and the hands-on training you get from your shop.
No article replaces training
Who supplies the equipment
Who supplies what is a question our research did not settle, so this section answers it the practical way: with the questions to ask, at the interview or when the offer is in hand.
What is actually on the truck — drum or sectional, jetter or cable-only, camera and locator or neither?
Who services the machines, and on what schedule?
What am I expected to run in my first weeks, and who trains me on it?
The answers tell you what work the shop can take and what you will learn there.
A cable-only truck teaches cabling; a jetter-and-camera truck teaches the full sequence of open, wash, inspect, locate.
Live postings let you make the same comparison outside an interview: scan drain technician jobs and read for the equipment — jetter or cable-only, camera or not.
What a shop runs tells you what its calls look like.
The role behind the truck — licensing, pay and the path to plumber — is in the drain technician guide.
Career information, not legal advice — how each machine is run and maintained is set by your employer and the manufacturer's manual, ask at the interview who supplies what, and licensing questions belong to your state board or, where licensing is local, your city or county.