There is no need to stop the horizontal dirt pipe now that it has reached the basement drain point. system installed that does not drain to the septic. Toilet drainage lines must be installed at a steep enough angle so that gravity will carry solid waste to drain. Depending on the purpose of the basement, these include the kitchen, dining, working, sleeping, dressing, recreational, storage, laundry, wet, and dry. How to fix it 4. Shower enclosures are a good option for small bathrooms since the panels help with overspray. Read Also: Typical Basement Floor Drain Layout. Parking Structure Fuctional Design Parking Structures:Recommended Practice For Design and Construction Table of Contents 2. Some people choose a basement design layout that allows for an office and fitness area. Sink supply lines (horizontal): Two holes are required, one for the hot water supply and the other for the cold water supply. $110 – $215. off-center (opposite from where the disposal will hang); this will ensure plenty of room for connections. Open the faucet to release any air from the lines and let the water fall into the newly installed sink. 1. When you spot a drain fly, spray the fly with the mixture. 5 cm); most are 4 inches (10 cm) in diameter. Application Selecting a floor drain depends on the application, whether it is for a shower drain or an area drain. It also helps in estimating materials. Yes, you can install this by directional drilling. Then, clean up the sawdust before proceeding to make sure it doesn’t get in the drain. Interested in the plumbing blueprint of your home? Check out this Roto-Rooter info-graphic that details plumbing blueprints of an average home. We’ve had no issues, thankfully. If site grade is level or directed toward the house and if space is available on the site, install swales to capture, control, and filter stormwater runoff, allowing it to percolate into the soil on site. of ½ to ¾ in. To carry water away from the foundation, a footing drain system should be installed consisting of a perforated drain pipe (also called drain tile) that is located underground on the exterior side of the footings at a depth below. Control liquid flow due to capillarity. Tools Required 4-in-1. Drain tile level or sloped to discharge to outside grade. Basement Sewer Backup!! Do you know the main reason your basement floods? Watch the video to find out 1. Click each category heading below to open and close each technical drawing category folder. Drill your holes at an angle, using an electric drill and a Forstner bit. It wasn’t until the 1650’s that the term referred to a. T F 4. This information can be found on the toilet’s specification sheet. Learn how a French drainage system installed in your basement will help keep it safe & dry from water damage. These walls may also be used in the lateral resisting system for the building. There’s more to proper plumbing than just following the codes and rules. Minimum pavement thickness designs are given for various size parking lots, heavily-loaded ar eas, and industrial parking lots. Creating a one-bedroom apartment costs closer to $63,000 to cover framing. Standard floor drains. All fixtures drain by gravity to a common point, either to a septic system or a sewer. Basement. ROOF DRAINS ZURN PLUMBING PRODUCTS GROUPSPECIFICATION DRAINAGE OPERATION, 1801 PITTSBURGH AVENUE, ERIE, PA 16502 PHONE 814/455-0921 FAX: 814/454-7929 WEBSITE: Page 4 Main Roof Z100, Z100-90, Z104, Z105, Z107, Z108 High Capacity Z101 Water Insulated Main Roof Z100-AW, Z100-W, Z100-89Lines that supply water to the fixtures run above grade, through stud walls. Check the water, drain, and vent systems for possible leaks. Under Slab Plumbing Diagrams. Many towns lack in providing proper drainage system. Video of the Day. Causes Of Basement Flooding Utilities Kingston. The wall separating the two is about two-thirds the length away from the inlet. Install Pop-Up Drain. 2. Note the rag stuffed in the shower drain to keep it clean:Concrete masonry is used to construct various foundation wall types, including full basement walls, crawlspace walls, stem walls and piers. Make sure any floor drains are clear of obstructions. Toilet slabs. Sanitary house sewer line. We were also surprised that the floor drain was not connected to. Scope. Note: If A is 13 in. Bathroom Sink Rough-In Plumbing Dimensions. If your floor drain was once for a toilet, you may be lacking a trap. Make a layout and learn which areas need advanced plumbing, like bathroom and kitchen. These connections did not have a trap in them. Dig a deep hole for the sewage/pump tank. Selecting a floor drain depends on the application, whether it is for a shower drain or an area drain. You can get these measurements from your. But since it's small, make sure you organize the space efficiently. The drainpipes are made of cast iron, galvanized pipe, copper, or plastic. Floor drains require standing water in the P-trap to keep out gases. Floor Slab Schematic. 2) Water moving horizontally from some distant source. We're looking at a basement bathroom and. 2. The gravel is usually left exposed at the floor surface, but you can cover it with a metal or plastic grid if you choose. Type Premium Drawing. Typically installed six to 24 inches deep, it can also control water seepage through walls. Foundation drains should pitch at least 4 inches in every 100 feet of length. It may also have a plastic cap covering this nut. Situated at the lowest point on the basement floor, the floor drain serves as an outlet for water from a leaking water heater, condensation from an HVAC unit or even seepage due to heavy rain. To reduce chances that vent gases will enter the home, stack tops must be at least 6 in. Few people understand a plumbing vent’s true purpose. sanitary layout p1002 2 0 0 5 2 0 master plumber 11060. We had no idea that the main drain line was so close to the house’s foundation and that there was a potential for it to be damaged if the house shifted. A horizontal drain pipe usually gets blocked by soap and grease residues and causes. Reviewed by Jeff Botelho , Licensed Journeyman Plumber. section of 2×4 along the floor to “screed” the new concrete flush with the floor, and then smooth it out with a hand float. Having all plumbing on one wall reduces labor and material costs. They range in size from 2 to 6 inches, and are dependant upon the size of the hole in the floor, shower, or tub, as well as the pipes that fit into the space underneath it. Then, run warm water in the drain for a couple of minutes. He also identifies suitable locations for the sewage-ejector tank and draws the final trench layout. A drill-powered auger is used to dig a small pit below the slab. They usually range from 2 to 12 inches (5. (“Last” refers to fixtures down-slope. The following diagrams show some of the various approaches to common venting. Enviro Design Products: FootLoose RV Site. Cleaning a Denver basement, bathroom, or other types of Denver floor drains is a necessary task to ensure plumbing efficiency and prevent blockages. 2. Typically installed six to 24 inches deep, it can also control water seepage through walls. Basement Rough In Water Table Contractor Talk Professional Construction And Remodeling Forum. In most cases, washing machine P-traps are above the floor. For example, a shower may include a rain head, hand-held, and a traditional shower head, each with a flow rate of 2. Standard enclosure shower sizes: 30 x 30 inches. Most drain cleanouts are located outside of your home in the back or front yard, they look like capped pipes sticking up from the. This post explains the 6 most common drainage options for your salt-based. Mar 8, 2014 - Plumbing Layout for typical basement bathroom. Average Cost. Or if the slope of the ground permits it, use a creek bed to drain a low spot. Common signs of improper drainage include gutter overflow, foundation cracks, attic mildew, pooling water, basement leaks, and landscape damage. (13 – 10 = 3; 3 x 4 = 12). It isn't just for the bathroom but it could be sloped for a good part of the basement to here. A rough-in plumbing diagram is a simple isometric drawing that illustrates what your drainage and vent lines would look like if they were installed, but all of the other building materials in your house were magically removed. No special skills or materials are required when adding radon-resistant features as a new home is being built. 1. However, you can find measurements ranging from 10 to 14 inches as well – most often in older households. It consists. Touch device users,. 14 inches of immediate connecting pipe. Traditional Floor Drains. The drain field has a very slight downhill grade over its surface, if that means anything in this. Your first line of defense is an interior drainage system. An undersize, improperly sloped drain will continually clog. The following diagrams show some of the various approaches to common venting. It packs very well for a solid fill. These include one-piece, hidden, multipiece, three-piece, decorative, and tileable drain grates. to support top plate1 new ceiling/wall finish new stud wall2 top plate serves as fireblocking 2 1 Attach top plate to underside of joists where floor framing is perpendicular to stud wall. Standard floor drains come in two types: indoor and outdoor drains. 4. Sump Pump Installation Process in 8 Steps. However, running a toilet's 3-inch (or 4-inch) drain to an existing line may be difficult. The standard covers methods for basement drainage both for sewage and storm water. 20 Minimum 3" concrete floor thickness 321. (This system pumps out to a different part of the yard. That is, the hose is not sealed to the standpipe so that if the drain backs up, it will overflow onto the floor rather than into the washer. W. They are usually round, but can also be square or rectangular. To accommodate this, the discharge hole should be at least 18 above the floor level and 20 from the front rim of the toilet. Create a seal with the plunger and move it up and down several times to try to get the clog out. How to Maintain a Floor Drain. Plumbing fixturePin page Drain drains sumpBasement floor drain improvement options. DWG Detail File Download Autocad Design. The drainpipes collect the water from sinks, showers, tubs, and appliances. Basement Pro Club. Water-resistant floor coverings: Paint the concrete slab with a heavy-duty paint or cover the floor with glue-down vinyl if the slab is smooth and crack-free. 2. FLOOR DRAINS ZURN PLUMBING PRODUCTS GROUPSPECIFICATION DRAINAGE OPERATION, 1801 PITTSBURGH AVENUE, ERIE, PA 16502 PHONE 814/455-0921 FAX: 814/454-7929 WEBSITE: Page 4 FLOOR DRAIN SIZING and LOCATION The location, number, and size of floor drains are all important factors in the design of a. Radon monitoring devices typically cost between $120 and $230 each. Because the plumbing rough in happens prior to the concrete pour, layout accuracy becomes crucial long before the first wall is built. Subscribe Now:More:a. Basement and Floor Drain Backflow Preventers. 0. Water Reshaping Our Footprint Page 2. An in-depth illustrated manual dedicated to the IPC plumbing venting methods. per ft. For years, basement floor drains have been a requirement of most international and local. A second more reliable radon control solution is to control and isolate the source as suggested for basement construction in Chapter 2. Like curtain drains, these tiles use holes that take in excess water and direct it away from your home. BryanSayer | Aug 21, 2006 05:07pm | #4. Easy to track the moisture level and other indicators – advanced control panel with dual display; Cons. 3. Old houses often had a toilet in the basement. The sump is a submersible pump that sits in a basin surrounded by stone below the basement floor. Weatherstrip and insulate the doorway from the basement. The wet-area floor needs to slope at least 1/4 inch per foot to send water toward the drain; code also requires that the drain be at least 2 inches below the high point in the floor. To close and open the drain, two different assemblies are common: pop-up and plunger-type. Rids of pooling and standing water. The maximum weight of fly ash, other pozzolans, silica fume, slag or blended cements that is included in concrete mixtures for. Additional drawings are available on request and also in CAD format if required. Vent stacks in a household plumbing system work the same way. The drainpipes are made of cast iron, galvanized pipe, copper, or plastic. Slit an “x” in the polyethylene membrane at penetrations. Once the water is running clear, turn off the faucets. Floor Drain Pros. 13. These are static lioad ratings and do not take into con-Read Also: Typical Basement Floor Drain Layout. The floor needs to slope a minimum of a 1/4-inch per foot toward the drain. It’s possible to connect the washing machine to the floor drain, but that’s only an option if the drain has a vented trap and empties into the sewer. Medium Duty (MD) - Safe Live Load 2000. ) must include the size, location and type of pipe. They are filled with gravel covering. We’ll go over various cost factors and answer other important waterproofing questions in our guide. Get 5 practical tips to choose the right shower drain – and shower drain location – for your next remodel. Here's a rundown of average prices for drain cleaning, depending on the location of the clog: Location. Pour about 3 or 4 inches at a time, tamp and repeat. Instead, this is one of the most common bathroom plans. 0. Don’t ignore this because water leakage under a concrete foundation can cause additional problems. Exception: Basements having concrete foundation walls. Note: Extruded polystyrene foam can be yellow, pink or blue depending on the manufacturer for insulating basement walls. In this way, you can easily collect and drain your rain or additional water from your basement floor and can prevent different health hazards. A small, open-plan, 500-square-foot basement will cost about $20,000 while a 1,500-square-foot basement with three rooms and a bathroom costs around $57,000 to finish. View All Locations. Trench Drains. The rust and build-up on the inside of the pipe is extremely rough. 203 (1)(2) Minimum 4" garage floors on 4" base course, Floor slopes to drain toward overhead door or to an interior floor drain that complies with SPS 382 321. Plumbing system diagram house layout pipes works which Pex. Sanitary house sewer line. system by gravel, by weep holes, or by pipe through the footer to an interior drain. Buried downspout line connected to local septic or sewer piping. Concrete shall have a minimum specified compressive strength of f ′ c, as shown in Table R402. 44 m) and widths of 5’ (1. The genset room floor should be liquid-tight to prevent leakage of oil, fuel, or cooling liquid into nearby soil. French Drains. 2. The trench depth will vary depending on the amount of water you get and the type of foundation you have. DWV System Drains & Vents ©Don Vandervort, HomeTips. Since the days of the caveman we have seen the emergence of simple drainage systems. When water is flowing through the drain, the ball stays out of the way. Pull your tape measure from the back wall of the toilet. We recommend replacing drainage pipes with diameter less than 50 mm. 2 and a foundation drain shall be installed in accordance with Section 1805. Again, the idea here is that the top half of the horizontal drain acts as a vent. Determine whether a single- or multi-drain and vent system is appropriate. While you can save about $500 to $1,000 if the home already has a rough-in drain. Learn more about identifying the plumbing layout for a bathroom in an unfinished basement. 2. It’s important that the pump has enough capacity to meet the load. Toilet. 01 of 10 Fixture Drain A fixture drain is the upper, visible section of a tub, shower, or sink drain. 1 Slope of Horizontal Drain Piping. Building Foundation Plumbing Drain Pipe Layout And Asse…$101–250 Introduction A bathroom in the basement adds a lot of value to a finished basement. 16 Ground to be free of frost Permanent Wood Foundation (PWF) Excavation Inspection The air from beneath the basement floor, inside the frost wall, is intended to vent outside. However, the. 3. Be sure to evaluate each room individually and list what fixtures or appliances you will have in each. If the sink has a drain pipe, the hole should be at least 30 inches from the floor. Septic Tank Design 2-3 Chambers. 5 inches to have a height of 16. Lay a 6-mil polyethylene film on top of the gravel drainage layer beneath the slab. Typical Domestic Drainage System Layout Plans . A floor drain is a plumbing fixture that is installed in the floor of a structure, mainly designed to remove any standing water near it. Foundation drain tile and sump pumps manage the moisture to keep basements and crawlspaces dry. Make sure the Y-fitting is low enough to allow for installation of the other drain lines. Total linear feet. Tie the footing drains to the sump pit with a solid PVC pipe cast in place through the footings. The Spruce / Theresa Chiechi. The best way to repair a leaky ceiling is to identify its source, which might be a crack or hole. These drains effectively collect excess water and help keep your basement dry. Excess water enters the drain, goes through the catch bowl, and is carried away. A drainage system costs $10 to $25 per linear foot or $1,000 to $4,000 for exterior yard and landscape applications, and $40 to $85 per linear foot or $4,000 to $12,000 for a basement or interior perimeter drain. However, the. French drain cost per foot. Horizontal drain piping, including building drains and building sewers, shall be installed in uniform alignment at the following uniform slopes: not less than 1/4 inch per foot for 1-1/4 inch, 1-1/2 inch and 2 inch pipe size. above the floor for the same reason. Then, clean up the sawdust before proceeding to make sure it doesn’t get in the drain. A fresh coat of paint will allow your basement to complement the rest of your home. Blocking: Small blocks of lumber between joists that stabilize and brace the slats. How to plumb a basement bathroom diy pin on plumbing rough in shower drain diagram fascinating facts floating walls help identifying home unique roug diagrams and layouts. The top three areas are the bathrooms, kitchen, and laundry room. Installing a drainage system costs most homeowners between $2,111 and $6,732, with an average cost of $4,355. They feature a grated opening in the floor connected to an underground pipe, which. The plumbers at b&w discuss common causes of standing water in basement floor drain and how to go about repairing the clog. Learn the reasons why you might need to drain the pipes in your home's. Discard the debris in a trash bin so that it doesn't get pulled back down into the drain. Plumbing diagram of traps and vents floor drain basics how to unclog a basement floor drainThe bathroom sink’s water lines are roughed-in 3 inches above the drain. Concrete s compressive strength is much greater than it needs to be to support a. Only pipes we did not replace were under the basement floor. A surface-level drain will not collect enough water, and it will pool and push toward the house. Plan the drain layout first Rather than completely breaking out the concrete slab in the prospective bathroom, I cut trenches where the drains will run. Grade the bottom of the trench. Floor Drain Basics. First connect the (linear) shower drain to the drainage pipe and make sure that the drain pipe has sufficient slope. They may also function to drain seepage or groundwater from the sub-grade. Drainage pipe Subsoil drains Water pipe Vent pipe BG Bathroom group LT Laundry tray BT Bathtub RD Roof drain CO Cleanout WB Wash basin DF Drinking fountain WC Water closet FD Floor drain Chapter I contains the definitions from Part. Below are a some under slab plumbing diagrams that are relatively common. Sink supply line (height): Two holes; vertically, both are about 2 to 3 inches above the drain pipe. If you find that the drain is slow or clogged, use a rubber plunger to dislodge any debris. 4. Insert the assembly down through the wall plates and temporarily anchor it. These facilitates have a uppermost advantage to safely dispose the generated floods to receiving system. Your flooring simply won't accommodate the compound bends that a dish in the concrete presents. Stormwater drainage design is an integral component in the design of parking lots. They feature a grated opening in the floor connected to an underground pipe, which directs water to the main sewer line or a sump pump. These plumbing / sewer pipes should be checked anytime there had been significant foundation movement or foundation repair. 2482 best plumbing images on pinterest. Can be costly to install. Check your local codes for minimum requirements. What Is A Basement Rough. Split the finished basement floor plan into different zones. Concrete foundation walls in finished rooms/areas shall be furred out and insulated with a minimum of R-8 insulation extending down to the basement floor slab on basement walls less than 50% above grade and a minimum of R-13 insulation on basement walls that are more than 50% above grade. 4) Dampness dispersed throughout the soil due to its sponge-like absorption and dispersion of liquid water landing on the surface from rain or snow. CHAPTER 4 FOUNDATIONS. Keep supply lines about 20 in. This design consists of two separate environments — a toilet with a floor-to-ceiling cabinet for storage on one side, and a shower with a bathroom sink on the other side. 25. The top of the foundation drain, should be below the top of the finished basement or crawl space slab. First, cut your drywall to align it with the studs, where you’ll be attaching it. S-traps are plumbing traps with a distinct “S” shape, and they are quite large. Try Now! Easily eSign Documents, Forms and Agreements Online. This applies to drain pipes that are above ground as well, like those in your home. Get free estimates for your project or view our cost guide below:lSt1742-1983 2. above any part of a skylight or window that can be opened. Your first line of defense is an interior drainage system. Living-Dining Room Cad Floor & Ceiling Layout Plan. SECTION R404 FOUNDATION AND RETAINING WALLS. Most contractors prefer to use rigid drain tile for basement footer drains. Basement drainage25 basement remodeling ideas & inspiration: basement floor drains in Drain drainage cellarDrains plumbing. Why it floods 2. For this reason, the first floor framing should be installed before the walls are backfilled. com These are the types of basement floor drains: French drain: a drain filled with perforated pipe and gravel. Dish Soap and Warm Water. If the new bathroom is on the second floor, the main drain will have to travel through the wall on the first floor and down to the basement or crawlspace. How to Finish a Basement Bathroom - Part 1 - HandyManHowTo I bought a house with an unfinished bathroom in the basement. Plumbing Depth. Next article Full Basement For Rent In Hyattsville Md. How to clean gas stove burner heads safely so. Place vents on all four sides of the crawl space. Apply the insulation to the cold cellar or garage wall separating the heated basement from the unheated space, as if it were an external wall. See specification pages for specific load rating data. 3. Make sure the new pipe has a slope of at least 1/4" every foot flowing into the cast iron pipe. Your flooring simply won't accommodate the compound bends that a dish in the concrete presents. 20919_7169. A vent stack must be at least 12 in. For example, a 2 inch drain requires 3. liquid to the storm or sanitary drainage system. not less than 1/8 inch per foot for 3 inch, 4 inch, 5 inch, and 6 inch pipe. Both are operated by a trip lever at the overflow drain. Basement bathroom layout with rough-in drain and vent. Fill the basin with water nearly to the top. Steel rebar is generally used to reinforce the strength of these walls. Per the International Building Code, parking structures are designed for a live load of 40 pounds per square ft of live load. Build a creek bed to direct water away from a low spot in your yard. out from the corner on both walls. With a slab-on-grade floor, there are no joists to house plumbing, so we bury the pipes under the leveled building pad and pour the concrete floor right over them. Thanks. The slope of the sewer system is joined by trunk or main sewers but the exact location is influenced by number of factor such as position. (When choosing a place to install the pump, factor in a proper drainage plan and a proximity to a ready power source. Floor Plan Symbols, Abbreviations, and Meanings. . This system is installed under the basement floor where water is directed to a sump pump, through the pipes and to an exterior storm sewer. Area drains are designated for outside areas where rainfall intensity dictates sizing. Categories: Trending 104; Facts 98; Wall 98; Exclusive 96; News 92; Must Read 92; Hot right now: News. Isometric drawings of drain, waste and vent (D. Beyond that, there are five types of shower drains to choose from. How A House Works Simple Plumbing Diagram Of Traps And Vents Installation. The isometric drawings are to specify whether combustible or non-combustible plumbing is to be used. The quantity (and quality) of the materials are also important. A cheaper (although still expensive) option for drying out your basement is to install a French drain along the inside perimeter of your walls that channels water into a sump with a pump. Place gravel in the bottom of the sump pit and place the liner. 95. List All the Rooms That Need Plumbing. To sewer/septic system Vent stack exhausts above roof line This article covers eight important factors to consider when selecting and installing a residential floor drain. This way, you get complete privacy in the toilet space. Vent termination. Basement drainage25 basement remodeling ideas & inspiration: basement floor drains in Drain drainage cellarDrains plumbing. What S The Est Way To Put A Drain In Basement Quora. 14-inch rough-in. Your old house might have even been built before the need to have a vent system to aid drainage was. You’ll also want to drill a hole in the floor and the subfloor to put the drainpipe through. The major structural components of a basement are the wall, the footing, and the floor (see figure 2-2). That means there is 12-inches between the center of the toilet flange to the finished back wall. This type of drainage system has a perforated pipe installed around the basement floors perimeter. Basement walls are typically constructed of cast-in-place concrete or concrete masonry units. Once you are sure of the configuration, pull up the assembly and prime and glue the pieces. The vent pipes remove or exhaust sewer gases and allow air to enter the system so that the wastewater flows freely. Once the builder constructs the rough frame of the house, the plumber installs the water supply lines. 15 Drop Connection - A length of conduit installed vertically immediate1 y before its connection to a sewer or to another drain. Install new flooring: Most basements have concrete floors. 5 cm) deeper for every 8 feet (or 2. By the time that plumbing rough in is done, the pipes and drains will all be affixed into place — ready. In most cases, washing machine P-traps are above the floor. Where the 12-inch is, that will be the center of the toilet’s drain hole. Map the pipes. The waste system in your old house may be made up of cast iron, lead, plastic, or a combination of all of them. The latest radon gas detectors will digitally display the short- and long-term radon gas levels in your home with automated self-tests. 2. Explore. They range in size from 2 to 6 inches, and are dependant upon the size of the hole in the floor, shower, or tub, as well as the pipes that fit into the space underneath it. Let’s discuss typical waterproofing construction details. Concrete Basement Media Room. 2. Wait 20 minutes, then smooth it with a finishing trowel. Noisy gas. STRUCTURAL DESIGN . Download Drawing. No Installation Needed. Your old house might have even been built before the need to have a vent system to aid drainage was. Push the hose into the drain and pack rags around it (to prevent water from back-flowing and gasses. Drain tile is either clay sections or perforated drain pipe; it conveys water away from the house or to a sump pit in the basement or crawl space, where a sump pump then pumps the water away from the foundation, preventing water pressure from. no. When water in the soil is only a few inches above the basement floor, water canThe standard rough-in size for toilets is 12 inches for two- and one-piece toilets. Larger capacities are the best fit for a two-compartment tank. 11. For design assistance and product supply call Innovate Building Solutions nationwide at 877-668-5888 or for professional shower installation The Bath Doctor at 216-531-6085 (in Cleveland). Filed Under: Plumbing Tagged With: apartment building plumbing. They are hard to miss because of their shape and size when compared to P-traps or U-traps. Pour a cup of baking soda and a cup of white vinegar down the drain. Here's how to plumb the bathroom yourself and save at least $1,000 on plumbing costs. Area drains are designated for outside areas where rainfall intensity dictates sizing. | Published on Feb 24, 2023 The basement floor drain provides an exit for water in the basement before it reaches the windows. ) During those springs I never had an overflow of the system but I am concerned about possible hidden or latent damage to the drain field. The slope of the sewer system is dependent on the gradient of the area as shown in Figure-2.