The Illinois Plumbing Code

The Illinois Plumbing Code is one of the most comprehensive codes in the country. The code is divided into two categories – prescriptive codes and performance-based codes. Performance-based codes set general goals and guidelines but do not prescribe specific requirements. Prescriptive codes, on the other hand, specify the exact requirements and methods of achieving them. Think of a code as an address on a map, with written directions pointing you in the right direction.


It is unclear when or how copper will be included in the Illinois plumbing code. The issue is one that has been debated for many years, and one that has remained a mystery to many homeowners. Several cities have adopted their own regulations to regulate the use of copper in plumbing. For example, the Village of Orland Park allows the use of copper or galvanized water piping. The Village also allows the use of plastic pipes in plumbing systems.

A cross connection is a connection between a water supply and another water system. This indirect cross-connection can introduce a foreign substance into the potable water system. A potential cross connection is any fitting or fixture that has a threaded hose connection. In some instances, it could also be another connection, such as an unused toilet.

Cast iron

While it is possible to use cast iron in plumbing systems, it’s not an approved choice for septic systems. As the only city in Illinois with over 500,000 people, Chicago requires leaded caulked joints on all cast iron soil pipe. The city uses the International Plumbing Code as a model plumbing code and adds its own Chicago amendments to meet its requirements.

Cast iron is a gray material that was commonly used in water pipes for centuries. It was first used as an alternative to elm pipes. It was often made from individual pipe sections, called “sticks.” These pipes were connected using a variety of joint mechanisms. Some of these were flanged joints, which consisted of flat machined surfaces that were tightly bolted together. They were used to prevent leaks and remain common in above-ground pipelines today.

The Illinois Plumbing Code is one of only four states that does not adopt a model plumbing code. This means that any changes in the code have to be backed by substantiation. Illinois currently mandates a minimum temperature of 160deg F for water. This is not enough. The new governor in Illinois is considering adopting the model plumbing code. If he does, the other three states should follow suit.

ABS plastic pipe

If you have a home built before the 1970s, you probably have drainpipes made from ABS plastic. ABS stands for acrylonitrile-butadiene-styrene, a thermoplastic resin that is commonly used for drainpipes. This material is durable, shock-resistant, and flexible.

When using ABS pipe, make sure to cut it with a square or round blade. Angled cuts can result in weak joints. If burrs are present, use a deburring tool or sandpaper to remove them. When connecting ABS pipes, use a dry run or alignment marks to make sure that the pipes fit together properly. When reassembling, make sure to clean and dry the pipe before using ABS cement.

Branch fittings

Branch fittings are required in buildings that supply potable water and drainage lines. They must also be installed in vent lines. If these lines are connected by branch fittings, they must be at least 12 inches in diameter. These fittings must be approved by the Illinois Environmental Protection Agency and are installed in accordance with local regulations. They must be inspected upon installation and tested as necessary.

Hot water must meet standards set by the Illinois Pollution Control Board to be safe for human consumption. In contrast, indirect waste pipes carry liquid waste through an air gap. For a single-family dwelling, an individual water system supplies potable water. In commercial and industrial establishments, industrial wastes are created through processes. A potential cross connection is a fixture with a threaded hose connection or some other type of connection.

A backflow prevention device is a device that prevents contaminants from flowing into a potable water system. These devices must meet requirements set forth by the Illinois Plumbing Code and the Illinois Environmental Protection Agency. In addition, backflow prevention devices must be approved by the Director of Public Works.

Standards for shower valves

The Illinois plumbing code contains various requirements that are not found in other codes. For example, it mandates shut-off valves on fixtures, temperature regulators, and requirements for water heaters to prevent bacteria growth. These requirements are for the benefit of the consumer and help to ensure that they are safe and secure.

This proposed change would increase the temperature of water that can reach a person without risking scalding. The change would be a dramatic change from current practice, as water at that temperature would be potentially lethal for users who do not have a shower valve installed downstream. Also, a person without a shower valve could be scalded by the water in a shower that does not have a mixing valve.

The Illinois plumbing code specifies that shower valves must meet the ASSE 1016 or 1070 standards. This code also specifies the minimum size of drain pipes and traps for showers, toilets, and floor drains. In addition, the valves must be located where they cannot be blocked by walls or floor surfaces. Moreover, they must be installed in an accessible location so that the inspector can test them. Typically, this is behind the bathtub.

Regulations for lavatories

The Illinois plumbing code requires lavatories to meet the following requirements. They must be able to provide hot and cold water. Public lavatories and sinks must be equipped with ASSE 1016 or 1070 valves. For lavatories and sinks, these valves must be mounted on the left side. The handles on the sinks and lavatories must be at least six inches long. The piping for the sinks must be easily accessible to the user and must not interfere with the normal operation of the exit openings.

If there are more water closets or urinals in a restroom, the building must have at least one additional lavatory. Unisex restrooms must not have more than one water closet and lavatories, but they may have one urinal. The plumbing must also meet the requirements of the Illinois Accessibility Code.

Compliance with code

When it comes to plumbing in a home, it’s critical that you ensure compliance with the Illinois plumbing code. This code provides a standard for the installation of plumbing fixtures and the protection of public health. For example, the Illinois Plumbing Code requires shutoff valves at fixtures, temperature and pressure regulators, and a water heater that meets specific requirements to prevent the growth of bacteria. These standards are designed to protect the consumer and make the building safe for its occupants.

Unlike a building code, a plumbing code is a set of standards adopted by a governing body. It specifies plumbing system design, plumbing fixtures, installation, maintenance, and consumer recourse. It also establishes training and testing requirements for plumbers. This ensures that plumbers are skilled and knowledgeable about plumbing. If the building code were a uniform standard throughout the United States, the Illinois Plumbing Code would follow it.

In addition, the Illinois Plumbing Code requires that all plumbing equipment and materials must meet specific standards. If not, the Department of Health and Human Services (DHHS) can reject them if they are deemed to pose sanitary hazards. For example, if a bathroom sink drain has an overflow, the plumbing piping must be designed so that the overflow cannot rise when the stopper is closed. Also, the overflow must be removed when the fixture is emptied.


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