Category Archives: sewer drain clogs

A Professional Perspective on the Safety of Hydro Jetting for Old Pipes

Perspective on the Safety of Hydro Jetting for Old Pipes

Hydro-jetting is currently one of the most-effective methods for clearing clogs from drainpipes. This process uses a high-pressure water blast to dislodge and wash away clogs inside a drainpipe. But is this method safe for cleaning old pipes?

In this post, we will explain how hydro-jetting works, what you should consider before you hydro-jet your old sewer lines and the alternatives to hydro-jetting.

How hydro-jetting works

Hydro-jetting is a non-invasive method for unblocking and cleaning pipes. The plumber does not have to dig a trench to access the pipe that is being cleaned. Instead of digging a hole in the ground, a powerful jet of water is shot into the pipe to remove all blockages inside it.

The hydro-jetting machine, also known as a ‘jetter,’ is made up of the following components:

  • A tank which holds the water to be used during the operation
  • A flexible steel hose that is mounted on a drum or comes in sections which can be joined to make them as long as desired
  • A range of stainless steel nozzles; the type of pipe and severity of the clog determines the proper nozzle to use
  • The mechanism for pressuring the water

To hydro-jet a line, the flexible steel hose is passed into the pipe with the nozzle attached to its end. The drainpipe is accessed through a cleanout or one of the drains in the home, explains the Peak Residential Management team. The drum is used to unroll and push the hose into the drainpipe while it is guided by the plumber’s hand.

a hydro jetting taking place in chicago.

While this is going on, a stream of water is shot into the drain via the hose and nozzle. The nozzle can direct the water forward, backwards, and against the pipe surface. It not only clears the clogs inside the pipes, the pipes are washed clean, as the debris inside them is carried away.

To do this, a hydro-jetting machine uses pressures of 1,500 to 5,000 psi (pounds per sq. inch). That is enough pressure to shear away any tree roots inside the pipes. For reference, when pressure-washing a brick wall, you are advised never to exceed 1,500 psi. 

That is why before hydro-jetting a drain line, it is essential to conduct a visual assessment of the line first. That is typically done via a sewer camera inspection. Through this inspection, the plumber can check the condition of the pipes and determine if they can withstand hydro-jetting.

Should you hydro-jet old pipes?

Older pipes are more likely to have cracks and weak spots in them. The pressure of the water used in hydro-jetting can compound the existing issues with such pipes. For this reason, hydro-jetting is not always safe for old pipes. If pipes are fragile, do not hydro-jet them.

Old sewer pipes can be made from a range of materials, and as these pipe materials age, they may start to change in the following ways:

  • Cast iron: Despite its durability, the big issue with cast iron is its vulnerability to rust. A rusty cast iron pipe will not only slow your drain, it will become fragile.
  • Copper: Due to oxidation, copper pipes form pinholes over time and become vulnerable to corrosion.
  • ABS: Although similar to PVC, ABS is a polymer. It will become brittle if it is constantly exposed to low temperatures.
  • PVC: With frequent exposure to low temperatures, PVC will become brittle. This process does not depend on age; it can happen to PVC pipes of any age.
  • Clay:  Clay pipes are particularly susceptible to root invasion. Tree roots can undermine the stability of the pipe.

Hydro-jetting old pipes will damage them if they are showing any of these signs. Before hydro-jetting a sewer line with old pipes, you should get a professional plumber to do a sewer camera inspection to determine if hydro-jetting is the best drain-cleaning option for you.

older pipes.

Alternatives to hydro-jetting

The best alternative to hydro-jetting is sewer rodding. That is a way to manually push or pull clogs out of the drain. Although no drain-cleaning method is 100%-safe, sewer rodding offers more control than hydro-jetting. A rodding machine can be maneuvered such that it doesn’t touch the pipe walls.

Sewer rodding is similar to hydro-jetting in some ways. When rodding a pipe, a long flexible tube (known as a ‘plumber’s snake’ or ‘drain snake’) is inserted into the drain. This tube contains a cable, the end of which is attached to a corkscrew auger that resembles a coiled spring or drill bit.

The tube is then hand-cranked to spin the corkscrew. A combination of twisting, pulling and pushing movements are used to snag any clog inside the drain and pull it out. Although it takes more time than hydro-jetting, a sewer rodding service is decidedly the better option when working with fragile pipes.

In Conclusion

Is hydro-jetting acceptable for old pipes? It depends on the condition of the old pipes. Before hydro-jetting old pipes, do a camera sewer inspection to determine their ability to withstand high water pressure. Depending on the inspection result, you may use or reject hydro-jetting.

Symptoms of a Sewer Drain Clog

Symptoms of a Sewer Drain Clog

A clogged sewer drain is one of the very worst plumbing problems to have in your home. Just imagine the spectacle of wastewater with human waste and all kinds of filth bubbling up from a drain and flooding your home. This problem is better imagined than experienced.

A clogged sewer drain will not only cause flooding in your home, but it will also expose everyone in the house to significant health risks, warns IPM Management. Preventing sewer drain clogs is the best way to deal with them. But to prevent a sewer drain clog, you must know the signs of problems with your sewer drains.

How sewer drains work

All homes that are connected to the city sewer service have a single underground sewer drainpipe that runs from the home to the city’s systems. This pipe collects wastewater from all the drainpipes inside the home and channels it to the city sewers.

This main pipe is usually 3 or 4”in diameter and hooked to the home’s main drain. Other drainpipes that run from the home’s main drain to its various plumbing fixtures (sinks, showers, or toilets) often have a smaller diameter of 1 ¼ to 2 ½”. 

If the main sewer drainpipe which connects the home to the city systems is blocked, wastewater from the home will not pass through. Instead of going to the underground city sewer lines in the street, it will build inside the pipes until it eventually backs up into your home.

Signs that your main sewer drain is clogged

Here are the signs you will see in your home when there is a clog in your main sewer line.

Plumbing fixtures are clogged at the same time

Depending on how you manage your home’s plumbing, you may experience clogged drains from time to time. But when this happens, it is either the toilet, sink, or shower drain is clogged.

You usually shouldn’t have multiple fixtures clogged at the same time. If you find that two or more of the drains in the main level of your home are clogged, you may want to inspect your main sewer lines.

Toilets that won’t flush

This is one of the clearest signals that your main sewer line is in trouble. Toilet drains can get clogged as a result of flushing non-flushable items down the toilet. If you hear a gurgling sound from a toilet whenever you use a sink, bathtub or washing machine, it’s a sign that your main drain may have problems.

Blocked tubs and showers

A clog in the main sewer drain will show up in the shower and tub before you see signs of it in the sinks. That’s because shower and tub drains sit at a lower level than sink drains. 

As a result, issues with the main drain will become evident in those lower drain openings first. If shower and tub drains are filling with wastewater or draining slowly, you could have a clog in your main drain.

Strange reactions when using a sink

Typically, you will not experience backflow of wastewater at the sink because sinks are at a higher level than toilets and showers. But you may have trapped air in the sink drain if your main sewer line is clogged. 

Another sign to look for is gurgling sounds from the toilet closest to the sink or a change in water level inside the toilet bowl whenever you run water in the sink.

Overflow/backup when using the washing machine

If your main sewer drain is clogged, one of the signs is when draining water out of your washing machine, the toilet to overflow or results in backflow inside a tub or shower drain. If this problem is also accompanied by toilets that do not flush properly, you can be sure that your main sewer line is blocked.

What to do if your main sewer drain is clogged

Follow these steps if you think the main sewer drain in your home is blocked:

  • This is not a problem you can solve by yourself. Get a drain specialist to inspect the main sewer lines; they have the tools to correctly diagnose and quickly solve the problem.
  • Do not run the water in your home or flush any toilet. As long as you do not send more wastewater into your sewer drains, the problem will not get worse. Wait for the specialist to arrive.
  • To make sure a faucet in the home is not accidentally opened, shut off the water supply to the entire home from the main shut-off valve (not the shut off valve for individual fixtures).

What if after the drain cleaning specialist has camera inspected your main sewer line, they determine that the problem is from the city sewer lines? What can you do in this situation? For issues with the city sewers, talk to city officials. The city sewer line is outside your line of authority.

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