Dwv plumbing diagrams

Learn how to identify and recognize DWV Plumbing pipe and fittings. Full review on everything you need to know to recognize commonly used plumbing parts in ...

Cast Iron, PVC, ABS, and CPVC pipe and fittings for plumbing and industrial systems. ... EZS 800 - Stack Perspective Diagram: EZS 800D - Double Threaded Starter Fitting: EZS 800D - Double Flr Mount Back Outlet Plan & Riser: ... CPF-14 PVC DWV/STORM, or CPVC Special Waste Pipe w/ V Type Expansion Joint ...2.!The six major elements in a DWV system 4 3.!How to calculate the size for drainage and a vent system 6 4.!Different type of plumbing material used for a DWV 7 ... Figure 1: Demonstrates the schematic layout containing the six elements in a DWV system. (Plumbing Schematic Drain and Vent, Retrieved March 22, 2017)An S-Trap is a type of trap for plumbing. The purpose of an s-trap (or any plumbing trap) is to “trap” water inside the “u” section of the pipe. That trapped water creates what the plumbing code calls the “trap seal.”. The trap seal is the single most important component of your DWV plumbing system because it blocks sewer gas …. · I've attached a diagram for a new plumbing layout of the DWV system. Currently it is all Cast Iron (CI) or galvanized pipe, but will be 90% replaced with ABS …A Bohr diagram shows the distribution of an atom’s electrons among different energy levels, or electron shells. Each diagram also features the number of protons and neutrons in the atom’s nucleus.A list of DWV Valve used to plumb this bathroom. Keep in mind, the exact fittings you’ll need depend on your local plumbing code. The twos big plumbing codes in the United …

Type L, Type M and DWV. Cast iron. Cast-iron soil pipe in residential DWV systems is usually 3-inch or 4-inch nominal size. Pipe OD measures about 3/8 inch larger than the nominal size. Plastic and steel. Plastic and steel pipe with the same nominal size have the same OD. Convert OD measurements to nominal size with the following table.Maintain a minimum slope of 1⁄4 in. per ft., and support drains at least every 4 ft. Dry-fit all pieces, and use a grease pencil to make alignment marks on pipes and fittings. Other fixture drains. Run the 1 1⁄4-in., 1 1⁄2-in., and 2-in. fixture drains up from the main drain takeoff.Dec 2, 2022 · Last updated on December 2nd, 2022. Here are a few bathtub drain schematics and bathtub plumbing diagrams. Fairly simple drain system. If you have to hold your drain lever down for the tub to drain it is more than likely the tension spring on the back of the overflow plate. You can replace just this plate at your hardware store for a few dollars. The Importance of a Bathroom Plumbing Diagram, to get the best bathroom plumbing diagram for rough in, you need to first understand what all the parts are. The diagram should contain elements such as the supply lines, the drainpipes, the P-trap, and the vertical vent pipe. If you dont know what all these components are, here are some tips:such as the side wall of an upper story on the building. Nearest window, door, opening, air intake, or ventilation shaft: distance to plumbing vent. 10 ft (120 inches) from nearest window, measured horizontally. - OR 2 ft. (24 inches) above nearest window [or other opening listed at left], measured vertically.

The drain-waste-vent (DWV) system is used to drain water and waste from the building to a local sewer or septic tank, while the drain-water-vent (DWV) plumbing plan brings hot and cold water into the home. The drain water vent plumbing plan, also known as the sanitary system, includes all of your home's plumbing except the water supply …plumbing contractor to provide and install nail plates where piping passes through stud(s) within 2" of nailing surface to protect pipe from nails or drywall screws. plumbing contractor shall install hot water distribution loop and branch supply piping as close as possible to the hot water inlet side of point of use thermostatic mixing valve,As you can see from the diagram for this installation, this venting method provides for a free flow of air where liquid is not being trapped in the lowest portion of the vent, because of its connection to the drain. This method will work well in a crawl space or underground application. Relief Vents—Stacks of More than 10 Branch IntervalsThis gives the basic concept. A tub waste is 2" with a 1.5" trap arm and 1.5" vent. A lav can use a 1.25" trap and waste, but most small DWV pipe is 1.5". Back before the 60's, you would see 1-1/4" in copper DWV and galvanized.The air admittance valve (AAV) is a device designed to allow air to enter the drainage system to balance the pressure and prevent siphonage of the water trap when negative pressure develops in the system. In this way, it is used on individual vents, branch vents and circuit vents in lieu of terminating vents to the exterior of the structure.Oct 4, 2015 · A double fixture cross will empty the opposing bowl when flushing. Flush one toilet five times, and there is almost no water left in the other bathroom. For toilets, you need a fitting that doesn't allow the waste water to skip across the fitting. Toilets can be vented within six feet, and can be vented below the flange.

Nba 2k23 shot meter types.

... DWV pipe systems. The economic advantages of Vinidex DWV pipes and fittings, combined with their light weight, ease of installation and reliable performance ...Jul 26, 2023 · Understanding the layout of a rough-in diagram for bathroom plumbing can be challenging, especially for those without prior experience. Here's a breakdown of the typical elements included in these diagrams: Drain, Waste, and Vent System (DWV): Let's delve deeper into the DWV system. The drain lines collect water from sinks, showers, and tubs. Jun 26, 2022 · Basement bathroom plumbing rough in diagram. The DWV elevation in a bathroom plumbing diagram is a helpful tool for installing a new drain-waste-vent system. These fittings carry water and waste out of the building. The pipes used to service sinks and toilets are usually larger than the water supply pipes, reducing the possibility of blockages. 13 thg 1, 2021 ... If you want to know what PVC DWV pipes are and how they're different to schedule 40 PVC pipes, a good way to begin is by understanding what ...

Sep 7, 2020 · The bathtub works in a way that the water comes to the tub through the faucet and exits through the drain. Each bathtub consists of two main parts; the water supply lines and the drain. The valve is connected to water (hot or cold) supply lines, while the drain is connected to the home’s drain line. If you have to make plumbing repairs around your home, it helps to understand your drain-waste-vent system (DWV). The fat pipes in your house make up the DWV, c2 days ago · Drain-Waste-Vent Systems Although hidden behind walls and in floors and ceilings, the pipes that make up a house’s drain-waste-vent system are the balance of …Know your DWV Fittings: Drain, Waste, and Vent. DWV Fittings are used for drain, waste and vent applications mostly in plumbing systems with a continuous water flow. These fittings are often ...Clip the feet into the lower part of the frame and install the clamp for the waste pipe into the elbow. 2. Measure and mark. Draw a line down where the drain goes in your wall and mark at 1m from the floor and 1.08m from the floor. This will set your toilet at 40cm from the floor, which is standard.A plumbing riser is any vertical pipe that carries water from a lower level to a higher level. It is used to bring water to fixtures such as toilets, sinks, and showers, that are on higher floors. Think of plumbing risers as vertical connectors, linking one floor with another. In this way your water supply is carried to all floors of your home.Chapter 4 Plumbing Fixtures and Fixture Fittings. Chapter 5 Water Heaters. ... Upcodes Diagrams. 1101.3 Storm Water Drainage to Sanitary Sewer Prohibited. ... wrought iron, copper, copper alloy, lead, Schedule d 40 A S B DWV, Schedule d 40 PVC DWV, stainless steel 304 or 316L ...The following diagrams show some of the various approaches to common venting. The sizing of common venting is specified in Table 911.3. ... Charles Lee Clifton, retired senior director of plumbing, mechanical and fuel gas resources for the International Code Council, has more than 45 years of experience in the plumbing, mechanical and …View the LASCO product Dimensional Catalogs for Schedule 40 PVC, Schedule 80 PVC, Schedule 80 CPVC, DWV, Class 125, and CTS-CPVC products.About DWV Fittings. When you need DWV fittings (also referred to as X-PVC) at a price you can afford, PlumbersStock should be your first stop. We have a huge selection of fittings for all types of applications, and that includes drain, waste, and vent fittings. Fittings are necessary for a properly functioning waste removal plumbing system. Residential Plumbing Rough-In February 1, 2021 MyBuildingPermit.com | Residential Plumbing Rough-In 2 Drains, waste, and vents (DWV) are water-tested with a 10-foot head for 15 minutes or air tested at 5 psi for 15 minutes. Plastic pipe not allowed to be tested with air. (UPC 712.1, 2, 3)

Understanding a typical house’s drain system is an important first step in figuring out where a drain clog is occurring. Both in the illustrations below and in the article, How Drain-Waste-Vent (DWV) Systems Work, we detail how drains carry waste water and sewage from the toilets, bathtubs, and other plumbing fixtures to the sewer or septic …

Dozens of diagrams and photos showing the correct and incorrect examples of common venting, horizontal and vertical wet-venting, combination waste and vent, ...All DWV plumbing systems require at least one vent penetration through the roof line, which allows air to enter the system, while also permitting sewer gas to escape. Connecting all plumbing fixtures in a building to existing venting systems can be complex and limiting. So, you might be asking yourself if there’s a way to bypass this process ...ASTM D 3311 Drain, Waste, and Vent (DWV) Plastic Fittings Patterns. ASTM F 1866 Poly (Vinyl Chloride) (PVC) Plastic Schedule 40 Drainage and DWV Fittings.Fabricated Fittings. ASTM D 1784 Rigid Poly (Vinyl Chloride) (PVC) Compounds and Chlorinated Poly Fittings.(Vinyl Chloride) (CPVC) Compounds. NSF® International Standard 14 (NSF®-dwv) Certified If you own a GMC vehicle and find yourself in need of wiring diagrams, you may be wondering where to find them without breaking the bank. Luckily, there are several resources available that provide GMC wiring diagrams for free.About this chapter: Chapter 3 covers general regulations for plumbing installations. As many of these requirements would need to be repeated in Chapters 3 through 14, placing such requirements in only one location eliminates code development coordination issues associated with the same requirement in multiple locations.In modern plumbing, a drain-waste-vent (or DWV) is a system that allows air to enter the plumbing system to maintain proper air pressure to enable the removal of sewage and greywater from a dwelling. Drain refers to water produced at fixtures such as sinks, and showers; waste refers to water from toilets.How to rough in plumbing under a concrete slab is useful to know when building your own house. Hydrostatic pressure test using water is important to know for...Bathroom Sink Rough-In Plumbing Dimensions. Sink supply line (height): Two holes; vertically, both are about 2 to 3 inches above the drain pipe. Sink supply lines (horizontal): Two holes are required, one for the hot water supply and the other for the cold water supply. One hole is 4 inches to the right of the centerline and the other is 4 ...A dry vent must connect at an angle of 45 degrees or greater, measured from a line cut horizontally midway through the pipe. Because it carries water and air, a wet vent must connect at an angle less than 45 degrees to this line. For more on plumbing vents, including wet vent configurations and dry vent rules, visit the JLC Field Guide.What Is a DWV Fitting? DWV is not a type of material. These fittings are usually made of a PVC or ABS plastic ( often called X-PVC Fittings ). The typified by their application: drain, waste, and vent, hence the DWV. For clarity on the subject, remember that DWV and X-PVC refer to the same fittings and applications.

Craftsman yt 3000 oil filter.

Bancorpsouthonline.

As you can see from the diagram for this installation, this venting method provides for a free flow of air where liquid is not being trapped in the lowest portion of the vent, because of its connection to the drain. This method will work well in a crawl space or underground application. Relief Vents—Stacks of More than 10 Branch IntervalsHere are some of the main types of vents in plumbing that you need to be aware of; 1. Common Vents. Common vents simply refer to a concept that allows 2 fixture traps to be vented by the same vent. The 2 fixture traps can either be in the same level or different levels but they must be on the same floor. Apr 28, 2023 · A soil stack vent is a long vertical pipe that ends just above the roofline to remove foul vapors and gasses from a plumbing system. The upper part of the vertical soil stack provides the venting component of the DWV system. If you follow it upward, the vent stack penetrates through the roof of your home, where it is open to the outside air. Plumbing plan or plumbing drawing is a technical overview of the system that shows the piping for freshwater going into the building and waste coming out. 2. What is Included in a Plumbing Plan. A well-planned plumbing diagram illustrates the housing system that will bring water in and take the waste out. This gives the basic concept. A tub waste is 2" with a 1.5" trap arm and 1.5" vent. A lav can use a 1.25" trap and waste, but most small DWV pipe is 1.5". Back before the 60's, you would see 1-1/4" in copper DWV and galvanized.About DWV Fittings. When you need DWV fittings (also referred to as X-PVC) at a price you can afford, PlumbersStock should be your first stop. We have a huge selection of fittings for all types of applications, and that includes drain, waste, and vent fittings. Fittings are necessary for a properly functioning waste removal plumbing system. FIGURE 5.45 DWV riser diagram, with size and location of pipes. (Courtesy of TAB Books, Home Plumbing Illustrated, by R. Dodge Woodson, p. From referencing the 2014 code and appendix N with examples, some plumbing setups that used to not be allowed, are now allowed, or so it appears. Please see attached diagram of my new plumbing setup plan for 2 bathrooms directly over eachother. im changing the floor plan and had to move the...The Proper Height for a Sink Drain Rough In. It is crucial to determine the appropriate height for a sink drain rough-in to ensure efficient drainage and prevent blockages. The rough-in height for a kitchen sink drain usually falls between 20 to 24 inches, taking into account sink depth and trap size. The International Plumbing Code has ...AAA ROUND THE CLOCK PLUMBING is your choice for plumbing issues. We are experienced professionals who are able to offer you the best solution to your plumbing needs. We guarantee all of our work and offer various forms of payment. When you have a plumbing project, please give us a call and let us help you. All our technicians are reliable and ...Understanding a typical house’s drain system is an important first step in figuring out where a drain clog is occurring. Both in the illustrations below and in the article, How Drain-Waste-Vent (DWV) Systems Work, we detail how drains carry waste water and sewage from the toilets, bathtubs, and other plumbing fixtures to the sewer or septic … ….

Apr 9, 2022 · DWV stands for D rain- W aste- V ent. It is the “back half” of your plumbing pipe system that drains fluids and waste away from the house and connects to a sewer …FIGURE 5.45 DWV riser diagram, with size and location of pipes. (Courtesy of TAB Books, Home Plumbing Illustrated, by R. Dodge Woodson, p. How To Plumb a Bathroom (with multiple plumbing diagrams) by Dylan. In this article, you’re going to learn how to plumb a bathroom. I’m talking drains and vents, the stuff bathrooms are really made of. ... Trying to figure out the best plumbing pipe to use for your next project? Today, you’re getting 7 solid reasons to consider using PEX ...Feb 17, 2023 · Our Plumbing Vent Diagrams & Tips Can Help You Plan Your Remodel Learn why venting is an important consideration when planning a plumbing remodel, plus must-know information on vent types, drainpipes, and more. By Caitlin Sole Updated on February 17, 2023 Maintain a minimum slope of 1⁄4 in. per ft., and support drains at least every 4 ft. Dry-fit all pieces, and use a grease pencil to make alignment marks on pipes and fittings. Other fixture drains. Run the 1 1⁄4-in., 1 1⁄2-in., and 2-in. fixture drains up from the main drain takeoff.By Justin Fink Issue 254 - Oct/Nov 2015. Synopsis: The pipes that make up a house’s drain-waste-vent (DWV) system are the exit for the water provided through the supply lines. They also carry waste from the toilet, and they connect to outside air for venting sewer gas and relieving pressure. Project House editor Justin Fink explains how these ... Clamps are stainless steel. Quickly connects sewer, drain, waste and vent piping in any pipe material. Connectors and O-Rings install easily and quickly to provide leak-proof seals. Seals connections between most types of sockets, hubs, bells and spigots. Quickly connects 4" house pipe and 6" sewer pipe.Toilet Rough-In (The 4 Dimensions You Need To Know) You need to know 4 things before roughing-in a toilet: The distance to set the toilet flange from the back wall. The necessary clearance from left to right. How …. “Learn More…”. The following diagrams show some of the various approaches to common venting. The sizing of common venting is specified in Table 911.3. ... Charles Lee Clifton, retired senior director of plumbing, mechanical and fuel gas resources for the International Code Council, has more than 45 years of experience in the plumbing, mechanical and … Dwv plumbing diagrams, Here are some of the main types of vents in plumbing that you need to be aware of; 1. Common Vents. Common vents simply refer to a concept that allows 2 fixture traps to be vented by the same vent. The 2 fixture traps can either be in the same level or different levels but they must be on the same floor., Apr 15, 2023 · I love doing it. I’ve been a master plumber since 1981 and to me drawing a riser diagram or plumbing isometric drawing is like solving a crossword puzzle. Call me now if you want me to draw your riser diagram in days: 603-470-0508. What do Riser Diagrams Show? A riser diagram for plumbing drain, waste, and vent (DWV) piping shows: all drain pipes , 9. Requirements For Plumbing Vents in Cold Climates. Let's initiate with… A list of DWV Valve used to plumb this bathroom. Keep in mind, the exact fittings you'll need depend on your local plumbing code. The twos big plumbing codes in the United Declared is the IPC (International Plumbing Code) and the UPC (Uniform Plumbing Code)., More about rough plumbing: Drain-Waste-Vent Systems – Although hidden behind walls and in floors and ceilings, the pipes that make up a house’s drain-waste vent system are the balance of the plumbing equation. 14 Tips for Bath Plumbing – From the supply lines to the waste line, these simple rules will make your work better., Open the faucet to release any air from the lines and let the water fall into the newly installed sink. Check every component of the double sink, including the drain lines, water line, P-trap, sanitary tee, 90-degree sanitary fittings, basket strainers, and even the edges of the sink to make sure that there are no leaks., In my last column, I reviewed circuit venting and the variations of it to which different codes allow. This month we will “dive” into wet venting. There are different wet venting systems that both model and state plumbing codes allow. Vertical and horizontal wet vents are the... Please login or register to view Plumber articles., Apr 2, 2020 · Toilet Diagram © Don Vandervort, HomeTips Drains that penetrate a wall have a P trap; those that go through the floor have an S trap. Bathroom Sink Plumbing Diagram © Don Vandervort, HomeTip A sanitary tee directs traffic in your home’s drain-waste-vent plumbing system to make sure wastes go down to the sewer and gases go out the vent stack. , Free Fitting Guide: https://www.hammerpedia.com/dwv2Checkout Our Huge Collection of Bathroom Plumbing Plans: …, 2.8.6 Stack and Riser Diagrams.....2-4 2.8.7 Equipment Schedules ... 10.5 PHARMACY PLUMBING REQUIREMENTS .....10-4 10.6 STERILE PROCESSING SERVICES (SPS).....10-4 10.6.1 General Considerations ..., Jun 22, 2022 · Use approved clamps or straps to secure pipes. According to most codes, copper supply pipe must be supported every 6 feet, galvanized or black steel pipe every 12 feet, PVC or ABS drainpipe every 4 feet, and cast-iron pipe every 5 feet. To be safe, install more supports than are required. , This diagram of a typical DWV system is called a plumbing tree. Water runs down the sink drain into a p-trap (so called because it's shaped like the letter), which fills up with water …, Basic Plumbing Diagram Indicates hot water flowing to the fixtures Indicates cold water flowing to the fixtures *Each fixture requires a trap to prevent sewer/septic gases from entering the home All fixtures drain by gravity to a common point, either to a septic system or a sewer. Vent stacks allow sewer/septic gases to escape and provide, Plumbing plan or plumbing drawing is a technical overview of the system that shows the piping for freshwater going into the building and waste coming out. 2. What is Included in a Plumbing Plan. A well-planned plumbing diagram illustrates the housing system that will bring water in and take the waste out., Vent pipe and fittings shall comply with the applicable standards referenced in Table 701.2, except that: . No galvanized steel or 304 stainless steel pipe shall be installed underground and shall be not less than 6 inches (152 mm) aboveground.; ABS and PVC DWV piping installations shall be in accordance with the firestop protection requirements in the …, you need a plumbing permit. you plan to install the pipes yourself. your plumber needs the drawing and can't do it. There are other reasons to draw plumbing plans, but those are the most common. Plumbing plans are much more than just a bunch of lines. You need to have an intimate knowledge of both the plumbing code as well as lots of practical ..., 360-j pl201 plumbing supply distribution plan - pharmacy 360-j pl202 plumbing waste, drain and vent piping plan - pharmacy 360-j pl203 plumbing roof plan - pharmacy 360-j pl301 plumbing standard schedule and riser diagrams 360-j pl401 plumbing details building 360 nts 1/4" = 1' - 0" 1/4" = 1' - 0" 1/4" = 1' - 0" nts nts, Schematic of a direct vented plumbing fixture (C) Carson Dunlop Associates ... (DWV) piping does not permit easy connection to the vent pipe. Like · Reply ..., Vent termination. To reduce chances that vent gases will enter the home, stack tops must be at least 6 in. above the upslope side of the roof and at least 3 ft. above any part of a skylight or window that can be opened. A …, Plumbing 363; Roof coverings - onduline 37; Roof coverings - structures 1605; Roof waterproofing chova 25; Roof waterproofing giscosa 16; Roof waterproofing texa 18; Seismic structures 317; Shorings - sliderail system 62; Steel structures 1258; Wall coverings - stone - marble 31; Walls - block 186; Walls - brick 230; Walls - stone 65; Wood 271;, Measure the future depth of the horizontal pipe beneath the drain (B). Do a little math. (A – B) x 4 = the maximum length (in feet) of the drain line, from the main to the end of the horizontal pipe under the drain. Note: If A is 13 in. and B is 10 in., for example, the maximum length of the drain line is 12 ft. (13 – 10 = 3; 3 x 4 = 12)., Feb 17, 2023 · Caitlin Sole Updated on February 17, 2023 Drain-waste-vent (DWV) pipes smoothly carry waste and water out of a house without gurgles or fumes. This requires an air passageway behind the water. Vent pipes …, The drain-waste-vent (DWV) system is used to drain water and waste from the building to a local sewer or septic tank, while the drain-water-vent (DWV) plumbing plan brings hot and cold water into the home. The drain water vent plumbing plan, also known as the sanitary system, includes all of your home's plumbing except the water supply system., 2.!The six major elements in a DWV system 4 3.!How to calculate the size for drainage and a vent system 6 4.!Different type of plumbing material used for a DWV 7 ... Figure 1: Demonstrates the schematic layout containing the six elements in a DWV system. (Plumbing Schematic Drain and Vent, Retrieved March 22, 2017), By Justin Fink Issue 254 - Oct/Nov 2015. Synopsis: The pipes that make up a house’s drain-waste-vent (DWV) system are the exit for the water provided through the supply lines. They also carry waste from the toilet, and they connect to outside air for venting sewer gas and relieving pressure. Project House editor Justin Fink explains how these ... , Jan 1, 2007 · The Drain Waste and Vent (DWV) system is perhaps the most important part of the total plumbing system in a building. The DWV system is for the removal of waste water and material from the building. Inspectors recognize this portion of the plumbing system as a major concern for not only the function of the plumbing but for , P-1107.1.1 Yoke Venting Offsets. Such offsets shall be provided with a yoke vent equal to one-half the diameter of the vent stack or soil stack but not less than 1-1/2 inches. The lower end of the yoke vent shall connect to the soil or waste stack through a wye below the offset and above the next lower horizontal branch, and the upper end shall ..., ... DWV pipe systems. The economic advantages of Vinidex DWV pipes and fittings, combined with their light weight, ease of installation and reliable performance ..., This very simple concept allows two traps to be vented by the same vent. The two traps and their fixture drains can be either at the same level or at different levels, provided that they are on the same floor. The following diagrams show some of the various approaches to common venting. The sizing of common venting is specified in Table 911.3., Option 1: Island Vent. Plumbing an island sink is challenging. It can’t be vented the same way as a regular kitchen sink. Here’s how it works. Plumbing vents (a network of pipes that carry air and gas outdoors through a pipe exiting your roof) are essential to supply enough air to keep equal pressure in the plumbing system., PVC Schedule 40 DWV Pipe & Fittings. ASTM D 1785: Specification for poly (vinyl chloride) (PVC) plastic pipe, Schedule 40, 80, and 120 Scope: This specification covers PVC pipe in Schedule 40,80, and 120 for pressure applications. This system is intended for pressure applications where the operating temperature will not exceed 140 degree …, On a blank page. In Visio 2016 and newer versions: Click Templates > Maps and Floor Plans, and then click Plumbing and Piping Plan > Create. In Visio 2013: Click Categories > Maps and Floor Plans, and then click Plumbing and Piping Plan > Create. In Visio 2010: Under Template Categories, click Maps and Floor Plans, and then click Plumbing and ..., As you can see from the diagram for this installation, this venting method provides for a free flow of air where liquid is not being trapped in the lowest portion of the vent, because of its connection to the drain. This method will work well in a crawl space or underground application. Relief Vents—Stacks of More than 10 Branch Intervals , By Justin Fink Issue 254 - Oct/Nov 2015. Synopsis: The pipes that make up a house’s drain-waste-vent (DWV) system are the exit for the water provided through the supply lines. They also carry waste from the toilet, and they connect to outside air for venting sewer gas and relieving pressure. Project House editor Justin Fink explains how these ...