Drain Jetting for Stubborn, Recurring Clogs

Drain jetting is hydro jetting for the smaller pipes inside a home or business: a narrow hose and nozzle spray high-pressure water through a kitchen, laundry, shower or floor drain to wash out grease, soap and scale. It is the fix people look for when a drain clogs again soon after it was snaked.

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By Hydro Jetting USA Editorial Team · Last updated

Jetter hose feeding into a kitchen drain cleanout under a sink to clear grease buildup

What is drain jetting?

Drain jetting is high-pressure water cleaning for the branch drains that run from sinks, tubs, washers and floor drains to the main line. A jetter with a thin hose and a small nozzle scours grease, soap scum and scale off the pipe walls, so water flows more freely instead of squeezing through a narrow opening.

Most household drain lines are 1.5 to 3 inches across, much smaller than a 4 or 6 inch main sewer. That is why drain jetting uses a lighter hose and a smaller nozzle than sewer line jetting. People also call it hydro jet drain cleaning or water jetting. The idea is the same: wash the pipe clean instead of poking a hole through the clog.

If one drain in your home keeps slowing down, call now and describe it. A local pro can tell you whether jetting is the right fit.

Which drains can be jetted?

Almost any drain with a way in can be jetted: kitchen sinks, laundry and utility sinks, washing machine standpipes, shower and tub drains, basement and garage floor drains, and outdoor area drains. Access is usually through a cleanout plug or by removing the trap under the fixture.

DrainUsual cause of repeat clogsIs jetting a good fit?
Kitchen sinkGrease, food waste, coffee groundsYes, especially for repeat grease buildup
Laundry / washer standpipeLint, detergent residueYes, when it overflows during the drain cycle
Shower and tubHair and soap scumSometimes; a snake often works first
Basement or garage floor drainSand, silt, debrisYes, flushing sediment is what jets do well
Outdoor area drainLeaves, dirt, rootsYes; roots may need a cutting nozzle

Not sure what is in your line? Call and the pro will ask what you have seen.

Kitchen drain jetting: grease and food buildup

The kitchen line is where jetting earns its keep. Warm grease runs down the sink as a liquid, then cools and sticks to the pipe a few feet later. Each layer traps food bits, and the pipe slowly closes up until a snake can only open a small channel through the middle.

The U.S. EPA reports that grease is the most common cause of reported sewer blockages, and much of that grease starts in kitchen sinks. Jetting is designed to strip much of that hardened coating off the walls of the kitchen branch line and wash it down to the main drain. A plain snake leaves most of that coating behind, which is why the same sink often clogs again within weeks.

EPA also advises never pouring cooking oil or grease down a drain and limiting garbage disposal use, because disposals add fats and solids to the line. Those two habits do more to keep a kitchen drain clear after jetting than any product. If your kitchen sink is slow again, call now to book your service.

Why do drains keep clogging?

A drain that clogs over and over usually has something stuck to the pipe walls, not one object in the way. Snaking clears the symptom; the coating stays and catches new debris. Less often, the pipe itself is the problem: a sag, poor slope or a broken section that holds waste.

  • Grease and soap coat the inside of kitchen and laundry lines
  • Hair ties together with soap in shower and bathroom drains
  • Scale from hard water narrows older metal pipes
  • Sand and silt settle in floor and outdoor drains
  • Pipe defects such as a sag (called a belly) or a cracked joint trap waste in one spot

If jetting does not keep a drain clear, a sewer camera inspection shows what is going on inside. Call and ask the pro whether a camera check makes sense for your drain.

Is drain jetting safe for my pipes?

For pipes in sound condition, yes. The pro matches the nozzle and pressure to the size and material of the drain, and household drain jetting uses far less force than municipal sewer cleaning. Very old, cracked or badly corroded pipes are checked first, because water can find a weak spot.

Drain pipe inside the homeWhat the pro looks forUsual approach
PVC or ABS plasticLoose glue joints, sharp bendsJet with a nozzle sized to the pipe
Galvanized steelRust closing the pipe from insideGentle jetting; heavy rust may mean replacement
Cast ironScale, thin or cracked wallsCamera first on old lines, then jet

Plastic drains handle jetting well. Older galvanized steel and cast iron can be jetted, but heavy rust may mean the pipe is near the end of its life, and the pro may suggest a camera look first. The what is hydro jetting guide covers each pipe material in more detail. Have a question about your pipes? Call and ask before any work is booked.

How do you keep a drain clear after jetting?

Jetting removes the buildup, but the same habits will rebuild it. Keeping grease, wipes and hair out of the line is what makes the result last, and a short list of habits covers most homes.

  • Wipe greasy pans with a paper towel before washing them
  • Use a strainer in the kitchen sink and a hair catcher in the shower
  • Run hot water for a minute after the dishwasher or sink is used heavily
  • Never rinse coffee grounds or eggshells down the disposal
  • Ask the pro how often your kitchen line should be checked if it has clogged before

If a drain slows again despite this, call and describe what changed.

Can you jet septic and drain field lines?

Sometimes, but it depends on how your system was built, and it is a different job from pumping the tank. The U.S. EPA describes a conventional drain field (also called a leach field) as a series of perforated pipes buried in the yard. Some of these lines have cleanouts that allow jetting; many do not.

EPA notes that fats, grease and solids, for example from a garbage disposal, can reach a septic system and clog the drain field. Jetting cannot help if the soil around the lines is saturated or the system has failed. Call, describe your septic setup and ask whether jetting the lines is an option before booking anything.

Commercial drain jetting

Restaurants, cafeterias, apartment buildings and offices put far more grease and waste down their drains than a single home. Their kitchen and floor drains are often jetted on a schedule so they never reach the point of a backup during business hours.

For grease-heavy food service lines, see commercial grease line jetting. If a drain backup has already reached the main line, the sewer backup and main line clog page explains what to do first. Business owners can call 24/7 to schedule hydro jetting.

Drain jetting near you

Searching for drain jetting near me? Local professionals offer it across the United States. Each city page covers local plumbing conditions such as older housing, hard water and soil.

Local pages: Jacksonville, FL · Austin, TX · San Jose, CA · Charlotte, NC · Columbus, OH · Indianapolis, IN · San Francisco, CA · Seattle, WA

Find your state or city on the areas we serve page, or simply call from wherever you are. Calls are answered 24/7.

Frequently asked questions

Can you hydro jet a kitchen drain?

Yes. Kitchen lines are a common place for drain jetting, especially where grease has built up. The pro usually goes in through the cleanout under or behind the sink, or removes the trap, and uses a small hose and nozzle sized for a 1.5 to 2 inch line. The jet washes hardened grease and food waste off the pipe all the way to the main stack.

How does hydro jetting drain cleaning work?

A small jetter sends water through a thin, flexible hose to a nozzle. Rear-facing jets create thrust that propels the nozzle through the pipe, and the spray strips buildup off the walls as the hose is slowly pulled back. Loosened material is flushed down the line toward the main sewer.

Is drain jetting better than snaking?

For a drain that keeps clogging, usually yes, because a snake mostly opens a path through the blockage and leaves the coating on the walls. For a one-time clog caused by a single object, a snake is often all that is needed. If you are not sure, call and the pro can ask a few questions about the drain's history.

Can drain jetting clear a bathroom sink or tub drain?

It can, using a very small hose. Bathroom clogs are mostly hair and soap, and many clear with a snake. Jetting makes sense when the same bathroom line has been snaked several times, or when the clog sits farther down, where the branch joins the main drain.

Will drain jetting fix a slow drain for good?

It removes the buildup that is there now. Whether the drain stays clear depends on what goes into it. Scraping plates into the trash, keeping grease out of the sink and using drain screens all help. A drain that clogs again quickly after jetting may have a sag, a bad slope or a damaged section that a camera can find.

Can drain jetting clear septic drain field lines?

Sometimes. A drain field is a set of perforated pipes buried in the yard, and some can be jetted through cleanouts to wash out sludge or roots. Whether that is possible depends on how your system was built. Call to ask, and keep in mind that jetting the lines is not the same job as pumping the tank.

Can several drains be jetted in one visit?

Yes, when it makes sense. If the kitchen, laundry and a floor drain all give trouble, the pro can often handle them in the same visit, and may check whether a shared line or the main is the real cause. Mention every slow drain when you call to book.

Sources

  1. U.S. EPA: Controlling Fats, Oils, and Grease Discharges from Food Service Establishments (2012)
  2. U.S. EPA: How to Care for Your Septic System
  3. U.S. EPA: How Your Septic System Works

Same drain clogged again? Talk to a local drain jetting pro.

Call now, tell the pro which drain it is and how often it backs up, and book your service.

Call Now: (877) 340-0703

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Call Now: (877) 340-0703