
Here are four steps to follow when installing your standpipe:
- Choose a seamless PVC or steel pipe with the appropriate threaded NPT fitting to mount the ultrasonic sensor. You can use a reducer if you need to. ...
- Cut the end of the standpipe at a 45° angle. Make sure it is free from burrs. ...
- Place the pipe as vertical as possible with an unobstructed path to the target. ...
- Mounting the pipe is the toughest part. ...
Full Answer
How to install a washing machine standpipe?
Follow the easy steps below to effectively install a washing machine standpipe. You first need to figure out the standpipe height and then cut into the drain pipe that is running out of the house. Carefully use your reciprocating saw to cut into the drain pipe. Make sure that the cut is big enough for the standpipe piece to fit into the pipe.
How do you attach a standpipe to a drain pipe?
Insert the standpipe into the cut area on the drain pipe. To begin, slide it in dry to see if it fits. After you know it will fit, use your primer to clean the pipe. Then you can apply the solvent glue to the intersection of the pipes. Hold the pipes tightly together for several seconds.
How do I install my ultrasonic sensor standpipe?
Here are four steps to follow when installing your standpipe: Choose a seamless PVC or steel pipe with the appropriate threaded NPT fitting to mount the ultrasonic sensor. Cut the end of the standpipe at a 45° angle. Place the pipe as vertical as possible with an unobstructed path to the target. Mounting the pipe is the toughest part.
Where to install a standpipe system in a mall?
In the case of malls, an outlet is required at each public entrance point and adjacent to the passageways to ensure people's safety. Another factor of prime importance regarding the standpipe system's appropriate installation and functionality is the travel distance from an outlet.

How do you fit a standpipe?
Need to Install a Standpipe? Here's how:Choose a seamless PVC or steel pipe with the appropriate threaded NPT fitting to mount the ultrasonic sensor. ... Cut the end of the standpipe at a 45° angle. ... Place the pipe as vertical as possible with an unobstructed path to the target. ... Mounting the pipe is the toughest part.
Do you need a standpipe for washing machine?
While it might be tempting to simply connect your washer to any other convenient drain line, doing so increases the risk of water overflow and sewer fumes. To properly drain your washing machine, you'll need to have three components: Standpipe.
What is a drain standpipe?
A standpipe is an open-ended, metal pipe that can be screwed into a basement floor drain to permit the flow of water back up as high as necessary, thereby delaying or preventing a basement flood.
How high should a washing machine standpipe be?
Standpipes shall extend not less than 18 inches (457 mm) but not greater than 42 inches (1066 mm) above the trap weir.
Should I seal the washing machine drain hose to the standpipe?
If connecting to a standpipe, don't seal the hose to the pipe. Plumbing codes require that an air gap be left between the drain hose and standpipe to prevent siphoning water out of the washer. Don't lay the hose on the floor. That will drain the water out of your washer as fast as you fill it.
How far should washing machine drain hose go into standpipe?
Washing machine manuals typically specify a minimum height of 39” for the entry of the drain hose into the standpipe or faucet box, and a maximum height of 96” (8 feet).
What is the purpose of a stand pipe?
Standpipe systems are designed to provide fire protection water for hose lines in strategically placed locations inside a building or structure. Some older buildings only have standpipe systems while many newer buildings will have a combination system, which supplies the fire sprinkler system and the standpipe system.
Why is my standpipe overflowing?
What Causes Washing Machine Standpipe To Overflow? Some of the most common causes of a washing machine standpipe overflow are clogs in the lines, a major change in water pressure, or a major change in water usage.
Can a washer and sink share a drain?
A washer and a sink can share a drain. However, this setup is not recommended. The washer will constantly put water into the drain, while the sink will constantly take water out. Over time, this will cause a build-up of debris in the pipe and eventually lead to a clog.
What size pipe should be used for a washing machine drain?
The drain pipe should be a minimum of 1-1/2" I.D. (inside diameter) to ensure proper draining. The washer drain hose is a 1-1/4" O.D. (outside diameter). To be confident that no siphoning of water will take place, the drain plumbing must be a minimum of 30" high for Top Load washers.
How far away can a washing machine be from the drain?
You can fit a washing machine drain a maximum of 2.7 m (9 ft) from your washing machine. Washing machines come with standard 1.5 m (4.9 ft) hoses, but you can safely extend them with pipes that are a maximum of 1.2 m (4 ft) long.
What is the code for washing machine drain pipe?
The standard for new washing machine drain sizes, according to the Universal Plumbing Code, is now 2 inches. The pipe should be between 18 and 30 inches high from the floor, while the P-trap should be between 6 and 18 inches from the floor.
What is code for washing machine drain?
2 inchesAccording to the Universal Plumbing Code, the standard drain size for a washing machine is 2 inches. The absolute minimum should be about 1 1/2 inches. However, keep in mind that wash load capacities can vary by up to 400% or more depending on the model.
Does washing machine drain hose need elevated?
Yes, the drain hose needs to be elevated and it's always best to do so at a level that's higher than the washing machine itself. This will prevent possible siphoning. There are also other steps you can take to ensure that you get the best drainage.
Does washing machine drain into sewer line?
If you live in a city or subdivision with a municipal sewer system, then water from your washing machine flows to the same sewer line that your toilets, sinks, and showers drain into. This is the main sewer line. From there, the water will flow to a treatment plant. This is common in urban and suburban homes.
Is it code to have a drain in the laundry room?
The 2017 IRC code does not specifically require floor drains to be installed in laundry rooms, but buildings often include them to provide for emergency drainage or to help with other drainage needs (e.g., relief valves, water heater drainage, condensate drainage, etc.).
When is a Standpipe System Required?
The pertinent section of the IBC is 905.3, “Required Installations.” Most standpipe systems are installed due to the requirement under Section 905.3.1, “Height.” It requires a Class III standpipe be installed throughout buildings where the floor level of the highest story is located more than 30 ft above the lowest level of fire department access, or where the lowest floor level is located more than 30 ft below the highest level of fire department vehicle access. (See Figure 1.)
What is the minimum pressure required for standpipes?
The minimum design pressure for a standpipe system is contained in Section 7.8, “Minimum and Maximum Pressure Limits,” of NFPA 14. A hydraulically designed system is required to provide a minimum residual pressure of 100 psi at the most remote 2.-in. outlet on a Class I system. The 100 psi minimum requirement is based on the principle that most fire departments operate their interior attack handlines with combination nozzles, which are designed to operate at 100 psi residual pressure. Despite the nozzles being designed for 100 psi, the NFPA 14 requirement is not at the nozzle but at the inlet to the handline (literally at the outlet of the hose connection).
How much flow is required for a Class I standpipe?
As stated above, a Class I standpipe system is required to flow 500 gpm at the most hydraulically remote standpipe through the two most remote outlets. An additional 250 gpm is added at the most hydraulically remote outlet for each additional standpipe in the building, to a maximum of 1,000 gpm for a sprinklered building. If the standpipe calculated system demand is less than the supply, the design is acceptable.
What are the three classes of standpipe systems?
NFPA 14 identifies three classes of standpipe systems: Class I systems designed for use by fire departments with 2 ½-in. hose connections, Class II systems designed for use by trained personnel or fire departments with 11/2-in . hose connections, and Class III systems designed for use by trained personnel or fire departments with both 1 ½-in. and 2 ½-in. hose connections. These systems can then be designed as a combination of a wet, dry, automatic, manual, or semiautomatic system as defined and required by NFPA 14.
How high above the fire department is a Class III standpipe?
It requires a Class III standpipe be installed throughout buildings where the floor level of the highest story is located more than 30 ft above the lowest level of fire department access, or where the lowest floor level is located more than 30 ft below the highest level of fire department vehicle access. (See Figure 1.)
How far is a fire floor from an outlet?
As required by the fire code official when the most remote portion of a floor is more than 150 ft (nonsprinklered) or more than 200 ft (sprinklered) from an outlet.
Is a standpipe a high rise?
NFPA 14 permits Class I standpipe systems to be manual wet systems for buildings not classified as a high-rise, therefore all further discussions in this article will be based on the requirements for a Class I wet manual standpipe system.
Provide Ventilation
The standard washing machine expels enough water into your drainage system to empty other P-Traps in nearby toilets and sinks due to a lack of air in the system. To avoid this from happening, ensure to provide ventilation on the line.
Tool for the Job
With the following tools, installing a standpipe for your washing machine will be a breeze.
How to Install a Washing Standpipe
This is an easy do-it-yourself installation process, and you can complete the job in a few hours. • Find a drainpipe near the location of the washing machine and use the reciprocating saw to cut through the drainpipe.
How high should a standpipe be?
You will need to confirm building codes in your area, but most outline that the trap is at least 12 inches off the floor and the standpipe is a minimum of 18 inches above that. Around 39 inches is the average, and if your space allows it, the ideal height for your standpipe.
Can you glue a drain pipe to a standpipe?
Once you have cut into the dra in pipe, you can add the standpipe. Once you have it in place , you can glue it into place.
Do you need a standpipe for a washing machine?
During construction or when you install a washing machine in a new location , you will need to install a standpipe so that the washing machine has proper drainage.
Why is it important to have a standpipe when plumbing a washing machine?
An important thing to remember when plumbing a standpipe is to provide venting, because a draining washing machine sends enough water through the pipes to empty P-traps in nearby sinks and toilets if there isn't enough air in the line.
How to attach a trap to a washing machine?
Glue a length of 2-inch ABS pipe to the trap inlet that extends to a point above the top of the washing machine. This vertical pipe is the standpipe. Secure it to a stud with pipe strapping.
Can you use PVC pipe for standpipes?
You can construct the standpipe with PVC pipe. If you do, be sure to use PVC or all-purpose cement.
How far from a standpipe outlet is a helistop?
a. IFC 2007.5 Adds the additional requirement that all areas of the helistop or heliport is reachable within 150-feet of a 2 ½ in. standpipe outlet.
What is the IBC standpipe requirement?
1.Height – Section 905.3.1 requires a Class III standpipe throughout a four-story building measured from grade plane or when the level of the highest or lowest floor is located 30 feet above or below the level of fire department access.
What is the IBC for standpipes?
It makes a big difference once the designer knows where to look. The IBC is the driving code and clearly lays out the eight requirements for standpipes. National Fire Sprinkler Code Tracker.
What is the hose size for fire sprinklers?
The exception allows where the building is protected throughout with an automatic fire sprinkler system, a 1 ½ in. hose connection can be installed in accordance with NFPA 13 or 14 for Class II or III.
Is a dry standpipe allowed in an open garage?
d. Class I manual dry standpipes is allowed in open parking garages subject to freezing that meeting the Class II requirements of 905.5.
Is a standpipe allowed in sprinklers?
a. Class I standpipe is allowed in sprinkler ed buildings.
