Hydro jetting and sewer line cleaning in Minneapolis

Cable or jetter?

Cabling (snaking) spins a steel cable with a cutting head through the blockage. It is fast, cheap, and the right first move on a backup. It also leaves most of the root mass on the pipe wall, which is why so many Minneapolis homeowners are on a six-month snaking schedule with a plumber who never mentions the camera.

Hydro jetting pushes water at 3,000–4,000 psi through a nozzle with rear-facing jets that pull the hose down the pipe and scour the wall behind it. It takes roots to the joint, strips grease from a kitchen line, and knocks the scale off old cast iron. On clay in decent shape, jetting once a year can keep roots from getting big enough to cause a backup.

Jetting is not the answer when the pipe is broken. Water at that pressure through a collapsed joint just washes soil into the line. That is why a careful contractor scopes first, or at least cables, scopes, then jets.

What gets jetted in Minneapolis

Root-choked clay laterals. The most common main-line clog here. Boulevard elms, silver maples and lindens find the mortar joints in a 1920s clay pipe and fill it. Hydro jetting a sewer line with a root-cutting nozzle clears the run to the main. If the camera shows the joints are otherwise sound, an annual jet is a reasonable long-term plan; if they are open and broken, it is a stopgap before lining.

Grease and soap in kitchen and laundry lines. The 2-inch branch from the kitchen carries grease that cools and sticks in the cold section under the floor. Jetting at lower pressure clears it back to the stack.

Scaled cast iron. Cast iron under the basement floor rusts from the inside, and the rough tuberculated surface catches everything. Descaling with a chain flail or jetter buys time; when the bottom is rusted through, it is replacement.

Before lining. A liner needs a clean pipe wall to bond to, so a lining job should start with a jet.

Commercial lines. Restaurants along Lake Street, Central Avenue and Grand Avenue with grease-heavy lines are often on scheduled jetting for a reason.

What sewer and drain cleaning costs

Sewer and drain cleaning in Minneapolis is priced by the tool and the run. Cabling a main line runs $150–$400. Hydro jetting a residential lateral is $350–$900 depending on length, access and how much root there is. A camera pass afterwards to confirm the pipe is clean and sound adds $150–$250 on the same visit. Ranges, not a quote.

Backups: what to do first

If the floor drain is backing up, stop running water — the washing machine and dishwasher are usually what push it over. Do not pour chemical drain cleaner into a main line; it sits in the trap and burns whoever opens the pipe. Request an estimate and say whether the house has a cleanout; a local contractor clears it, scopes it and tells you whether it is a repair or a maintenance schedule.

What a jetting visit involves

1. Access. The hose goes in at the cleanout. With no cleanout, the line may be cabled from a pulled toilet first and jetted only where it is safe to do so.
2. A first look. A careful technician runs a camera, or at least a cable, before high pressure goes in, to make sure the pipe is intact.
3. Choosing the nozzle. A root-cutting head for clay with roots, a gentler spreading nozzle for grease, a chain or descaling head for rough cast iron.
4. Working out to the main. The jets pull the hose down the pipe while the rear spray scours the wall. Loosened roots and debris flush toward the city sewer.
5. A camera pass afterwards. This shows whether the pipe is clean and what shape the joints are in, which is the real value of the visit.
6. A plan. Either the line is sound and goes on a maintenance schedule, or the video shows damage that needs a repair or a liner.

Most visits take one to three hours. You will be asked not to run water while the hose is in the line.

Signs a line needs cleaning, not repair

• Drains slow down gradually over months rather than stopping all at once
• The camera shows roots or grease, but round pipe and joints that are still lined up
• Snaking has worked for a long time, and the line was last scoped clean apart from roots
• The kitchen or laundry is slow, but toilets and the floor drain are fine

If instead the line backs up suddenly, the camera can't get past a point, or soil shows in the pipe, cleaning will not fix it. That is a job for repair or replacement.

Keeping a line clean between visits

Most of what clogs a Minneapolis lateral is either roots or something that went down a drain. You can't do much about the roots without fixing the joints, but the rest is in your hands:

• Grease goes in the trash. Wipe pans with a paper towel and throw the towel away, not down the sink.
• Only toilet paper in the toilet. "Flushable" wipes don't break down in time and catch on every root and offset.
• Put a lint filter on the washer hose. It catches what would otherwise settle in the laundry line.
• Use strainers in the tub, shower and kitchen sink.
• Run hot water after heavy kitchen use, but don't count on it to move grease far.

Questions to ask before you book

1. Will the line be scoped before or after jetting, and is the video included?
2. What pressure and nozzle will be used on clay pipe?
3. What does the price include, and what would make it go up on the day?
4. If the camera finds damage, will you get a written repair price, with no pressure to decide on the spot?

A good sewer cleaning visit in Minneapolis ends with you knowing what the pipe looks like, not just that the water drains again.

More: tree-root season in Minneapolis, the fall sewer checklist and kitchen and laundry clogs that look like a main-line problem.