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Causes of Floor Drain Backing Up and How to Fix Them

99% of floor drain backing up is caused by a clog in the main sewer line. Roots and other debris may be blocking the floor drain pipe or clogging other pipes. Other reasons for a floor drain backup include clogged other drains or sewer lines in your house. Viruses are also common culprits. Here are some common causes of floor drain back up and how to fix them. You can check your floor drain for root growth by using a water jetting machine.


If your floor drain is backing up, you may have a clogged sewer line. When this happens, the flow of wastewater is interrupted and it backs up until it reaches the nearest release point, usually the floor drain. If the sewer line is damaged, the problem is not likely to occur immediately, but you can expect the problem to get worse before it gets better. Cracks, holes, and bellied pipes are common signs that your sewer line is backed up. A plumber will diagnose the problem and make sure that your drains and plumbing fixtures are in order.

Floor drains are often installed in basements, but homes that do not have basements can have a problem with this issue. If your home does not have a basement, the problem may originate from a sink or bathtub at ground level. The water can back up through a main sewer line if roots have infiltrated the drainage system. The lowest fixture in a basement is usually the floor drain, so if it backs up in that area, you need to fix the sewer line.

There are many causes for a backed up floor drain in a basement. The most common is a full basement drain, which is probably connected to a surcharged drain system or a public sewer. Another possible cause is a clogged main line. The clog may be in the house sewer and trap, which is the source of the floor drain backing up. The problem can also occur in a basement drain or trap.

Clogs in other pipes

When floor drains are clogged, water doesn’t transport waste from the sink or bathtub back to a natural reservoir. Water drains slowly, and puddles can form near the sink, bathtub, and shower. When this happens, the clog is not in one fixture alone; it affects all pipes that serve the sink or bathtub. Common clog culprits include soap, grease, and food particles.

Besides clogs, other causes of floor drain backing up include sewer line damage. Sewer line damage can result in cracks in the line, which can cause floor drains to back up. In addition to dirt and tree roots, a broken line will require additional repairs. Listed below are some of the common causes of floor drain back up. Clogged floor drains require immediate attention.

The first and most obvious cause of floor drain backing up is a clog in a sewer line. Sewage from a home’s toilets must travel through this pipe before entering the city’s sewer system. When the sewer line becomes clogged, the water gets trapped in the pipes and backs up to the floor drain. In this case, the sewer line may be partially or fully clogged.

If you notice early signs of a clog, you can resolve it without calling a plumber. One method that works well is to use hot water and vinegar. If soap is causing the clog, use the recommended amount. But be sure not to use too much. Using too much soap can make the problem worse. Clogs in other pipes can cause floor drain backing up.

Roots in basement floor drain pipe

Having clogged basement floor drains can be very expensive. Fortunately, there are a few simple methods to get rid of root growth that doesn’t require the use of chemicals. You can use copper sulfate, which you can buy at any hardware store or flush down the toilet. In some cases, a small amount of copper sulfate can solve the problem. If you’ve tried these methods and they’ve failed, contact a plumber to do a thorough cleaning.

If your sewer line is in good shape, it’s worth hiring a plumber to inspect it. A cracked or failing sewer line is a major cause of basement floor drains. A cracked sewer line can leak raw sewage and contaminate water. For best results, hire a professional plumber to replace the basement floor drain pipe. The cost of this service will vary depending on the size of the problem and the amount of root growth.

If the basement floor drain is clogged with roots, the next step is to clear out the root system from any debris. Next, check the trapway for a clog. If the roots have not reached the trapway, they’ll be able to invade the drain line and back up the system. Roots can grow in this drain system because it’s a place for the nutrients. This can lead to serious problems in your home.


Viruses can cause floor drains to back up for a number of reasons. Most of these pathogens are derived from human waste, which is filled with a variety of bacteria and germs. During the middle ages, sewage was responsible for killing people. This bacteria is found in sewage, and it can cause painful symptoms, including bloody diarrhea and vomiting. If inhaled, E. coli can also cause dehydration.

Another common cause for floor drains to back up is a clog in the sewer system. The clog will block the flow of wastewater, and it will back up until the next release point, usually a floor drain. The lowest drain in a home is often the first place that can get backed up. Sewer lines may be cracked, have holes, or have become bellied or collapsed.

Contaminated water

Floor drains can back up with sewage when the city’s sanitary main gets backed up. This backed-up sewage is considered Category 3 water, posing acute health risks to people. The sewage carries pathogenic microbes that cause disease when inhaled or touched. A clogged sanitary main may also cause a temporary backup. Water backing up around the toilet may cause a gurgling sound. Eventually, the seal under the toilet may break, causing a leak around the tank.

If you’ve ever had this problem in your home, you know how uncomfortable it is to deal with sewage. Even if you don’t have a floor drain, it’s possible that water is backing up. The lowest fixture in your home may be the floor drain. If you suspect this is the cause, follow these steps:

First, remove any contaminated items from the home. The sewage can contain viruses and bacteria that cause skin rashes and even serious illnesses such as Hepatitis A. Don’t drink or eat the contaminated water, but disinfect any contaminated items before using them. Touching the contaminated objects can cause sores or skin irritation. Wear protective gear and avoid touching contaminated articles.

Another common cause of floor drain backup is a clogged sewer line. This will prevent wastewater from flowing through the sewer line and will back up until the floor drain or lowest drain in your home. Cracks, holes, and bellied pipes are some common causes of sewer line problems. Sewage that is not moving freely can back up in a basement floor drain, leading to flooding. Therefore, you should seek emergency plumbing services right away.

Hydro jets

If you have a floor drain that keeps backing up, you may be wondering whether to use hydro jets for floor drain backing up. The good news is that these machines can help you get your floor drain back up in working order. A hydro-jetting machine will clear out clogs in the main sewer line by blasting them clean. The same technique can help clean the pipes in a restaurant, as grease and other material can accumulate in the pipes over time.

When it comes to hydro jetting services, the frequency depends on many factors, but a general rule of thumb is to have the sewer lines cleaned out at least every two years. However, if your floor drain is constantly backing up or draining slowly, it may be a good idea to call an Orange County plumbing professional. A video inspection can help determine a more accurate timeframe. In addition to hydro jetting, this method can clean clogged pipes and prevent a recurrence of clogging.

If the clog is small, a plumbing snake can remove it. But it doesn’t clean the entire pipe. If the clog is too deep, it might be a problem caused by tree roots or other hard-to-reach materials. Hydro-jetting is more effective, particularly in newer pipes, and in cases where tree roots are penetrating the pipe wall. And once it is cleared, the hydro-jetting machine will stop recurring problems.