Soakaway diagram. Small domestic soakaways are usually backfilled with rubble or hardcore which will have a porosity of around 30%. Soakaway diagram

 
 Small domestic soakaways are usually backfilled with rubble or hardcore which will have a porosity of around 30%Soakaway diagram  Calculate: A sp (area of base of soak pit) = 5

Download scientific diagram | A schematic diagram of septic tank with soak pit from publication: Advisory on On-site & Off-site Sewage Management Practices | As consultant, assisted. 4 sqm. Download scientific diagram | A soakaway is a small-scale underground cell filled with gravel and stones to store rainwater for infiltration. "Excavate a soakage trial pit to the same depth as anticipated in the full-size soakaway," the BRE Digest 365 explains. Septic tank and soakaway or small bore solid-free sewer. The minimum width of a septic tank is 600mm and the depth should be 1225mm including a freeboard of 300mm from the water level. Clearly show where the new manhole will be located on the public. Pipe runs near buildings 15 9. Buried Pipe Design. 8 44 - 47 General layouts 4. A septic tank should only need emptying when the. Condensate soakaway container for use with limestone chippings. common septic system design image. Dry wells (also known as soakaway pits, soakwell, or soak pit), is one of the earliest models of a water runoff management system. Polystorm-R. Septic Tank Maintenance. Surrounding soil should not be clay. In less than an hour you could have your soakaway system designed and calculations printed to BRE 365 standards. Crates can be combined with waterproof geotextile and pipework to create a system that redirects water at a more acceptable flow rate. Presby System in Stow - Curtis Septic, Inc. design. 24 Kg. 13,13-A, Nakshatra Arcade, IOC road, Chandkheda, Ahmedabad, Gujarat, India - 380060 +91 982 401 1921 . (a) Small wastewater systems must be located where the surface drainage is sufficient to allow proper operation of the small wastewater system. 5 to 2. These areas are useful for analyzing a geographic area, as it aims to understand waterfall and flow in the area. Description. 5m x 0. Here's an overview of both methods: Simple. Although rain is an unavoidable and integrated part of life in the UK, paying the fees associated with the. Imagine a septic tank soakaway kit that came with all th. Fill the hole with water and come back and check it the next morning. Download scientific diagram | 7 Schematic of a soakaway. This is illegal and will need to be rectified, either by installing a new soakaway, IF the ground is suitable, (although over 60% of sites fail the soakaway tests and cannot replace the soakaway), by adding a septic tank conversion to the system after the septic tank. 2) m3 is suitable for a family with 4-5 members, which has the. Attenuation Design. For small soakaways serving 25m² or less, a design rainfall of 10mm in 5 minutes is quoted in the Building Regulation Approved Document H as being an appropriate worst case. 3. Note the total absence of plant growth. 5 – Result = 30mins/25mm = 30. Provided in fully editable AutoCAD . French Drains – How They Work. a - is the internal surface area of the soakaway to 50% effective depth, excluding the base in m 2. 2. How to avoid a blocked soakaway. The condensate is about the same acidity as tomato sauce so unlikely to decimate your front garden, the soakaway is normally filled with limestone choppings which neutralise the condensate, either. However, before you start your project, there are a few do's to keep in mind. 2011 - v. This edition of Digest 365 sewer. The solids being heavier than the waste liquids, settles down at the bottom of the. Where the condensate drain pipe terminates in a purpose-designed soakaway (see BS 6798:2009 or boiler installation manual for soakaway design requirements) any above-ground section of condensate drainage pipe should be run and insulated as described above. Stormwater and infiltration in lawn or drainage basin. dwg format. Septic Tanks and Soakaway Page 11 ANNEXURE 1 – SABS 0400-1990 Tables 1, 2 and 3 ANNEXURE 2 – Diagram of a Concrete Septic Tank ANNEXURE 3 – Diagram of Various Storage Tanks ANNEXURE 4 – Diagram of a Trench Soakaway ANNEXURE 5 – Diagram of a Circular Soakaway Minimum soakaway site distances . They allow surface water to be stored in one location and gradually released back to the ground, a bit at a time, at a pace the ground can handle, rather than in one sudden deluge, as happens during a storm. The number of bedrooms and number of people in your home will determine the dimensions of the septic tank you need. How can I be sure that my septic system is working correctly? Buying a home is one of the biggest investments you will make, so you want to avoid anyView all files of Reinforced Concrete Design. SHOVEL FINISHING ON PIPE. Detail Drawings and Specifications for submission to Building Regulations. Author: Tony. A drain field is made of solid perforated pipes (NOT 'Flexicoil' land drainage pipe!), a minimum of 2 metres apart and a maximum of 700mm. 2 68 - 71 Fabrications 6. Stormwater Best Management Practice Wet Ponds Minimum Measure: Post Construction Stormwater Management in New Development and Redevelopment Subcategory: Retention/Detention Description Wet ponds (also referred to as stormwater ponds, wetDownload scientific diagram | 2. SEPTIC & SOAKAWAY PIT President's Office, Regional Administration and Local Governments. 2. 2m (4ft x 4ft x 4ft). However, this is not mentioned in the 2010 Building regulations guide. Stub stack 11 6. Adding a soakaway can be essential if you are installing a driveway or trying to reduce waterlogging in your garden. We can sometimes get your sewage treatment system,. If the soakaway becomes blocked up with fat grease and sludge it will stop working. Septic Tank Soakaway Design Guide. Diagram of a. 1. 5m is typically sufficient. Guidelines for Soakaway System THE SOAKAWAY SYSTEM A soakaway system normally includes screens, a catch pit, a septic tank, soakaway pit and. 10m (34ft) from a watercourse or ditch. 15m (50ft) from any building, and sufficiently distant from any other soak away, including roof water soak aways. When wastewater is discharged into a soak-pit, it slowly soaks into the ground. 5 feet wide, 8 feet long, and 6 feet tall. Design of soakaway. Posted on 08 Sep 2023. the effluent should be clarified or filtered well to prevent excessive build-up of solids. Septic tank system work diagram does tanks typical works systems leach tank1 waste treatment dummies water soil soakaway they repair Septic system sewer county tank water diagram conventional treatment projects disposal Septic tank system systems biodigester. lawn and garden drainage. Water will always find its way to the lowest point in the landscape, so it is common sense that the area most affected is the place you should build your French drain. roof or paved surface, and. The causes and solutions for smelly drains and sewage systems. Figure 1 below is a schematic diagram showing the general arrangement of the components of a soakaway system. 2 SEPTIC TANKS What Is a Septic Tank? If you live in a rural area or some place remote where there is no connection to the main sewer line, then you most likely have a septic tank or will need one. Visual Soakaway Design 4. A soakaway is an efficient and low-environmental impact way of dealing with either foul or excess surface water in your drainage system. Quantity of Soak Pit; Soak Pit Design: An open pit is dug in the ground and lined with porous material or left unlined and filled with gravel and coarse rocks. Illustration 4. The way yours has been installed is likely to come free during strong winds and will cause damp problems over time. It takes approximately 5. Dig the hole slightly deeper if you need to make the pipe line up better. from publication: An Interface to Model 3D Hydrological Process of a Soak-Away Rain Garden | To mitigate the adverse. When wastewater passes through the septic tanks, heavier solids sink to the bottom and undergo bacterial digestion. 2 56 - 57 Ventilation 5. The volumes of the designed swale and estimated soakaway are the same. Download scientific diagram | A septic tank and leach drain system (L) and soakaway system (WAPHD, 2014). A soakaway requires excavation and removal of the existing ground, which is typically replaced with a formal structure, constructed using a. Swimming pool backwash discharge and basement developments. Conversion chart - Concrete ring soakaway to AquaCell Download PDF AquaCell Range AquaCell systems are the tried, tested and versatile answer to the effective management of excessive rainfall – reducing flood risk and enabling the cost effective management of the water environment. The results from the test allow a drainage engineer to decide if a soakaway is suitable and if so, recommend the correct size. Spread the love. 2. edu. The most common size of soakaway for residential use is 1 Cubic Metre (1m³), as this is what most Local Authorities seem to specify. Soakaway Design Drawings in both CAD dwg and pdf formats. Termination of ventilation stacks or ventilation part of discharge 11 7. the roof is 180m2 We had a failed percolation test (the water didnt move a mm) within our existing boundaries, which i put down to the. 1. See more ideas about septic tank design, septic tank, sewage system. Description. 508 grid and hopper, 4D. I guess since I can't put a filter in the settling. Hi All, I'm looking for some advice, if there is any that can be given I'm in the midst of planning a large extension, and the last part of the building warrant requirement if the approval of a rainwater soakaway design. The Soakaway Design Guide (July 2000) 1b The Soakaway Design Guide (May 2000) i Table of Contents Foreword Definitions and Abbreviations PAGE NO. It is recommended that the soakaway is not installed near any service pipework such as water or electrical mains cables and the installation of the soakaway should be a minimum of 500mm away from the building The M cAlpine soakaway should be installed in a hole depth of approximately 400mm minimum x 200mm in diameter. Essentially, a soakaway is a hole in the ground, usually located in your back garden, that is filled with rubble, and is designed to catch. 30 Jul 2016. A soakaway system normally includes screens, a catch pit, a septic tank, soakaway pit and trenches, and the associated dung channels. Soakaway & AquaCell design depths are in conjunction with Ground Investigation information found in Appendix A of contract document. This routing coefficient depends on the shape of the time-area diagram and on the variation of rainfall within the time of concentrations. Soakaway Design. 3. Soak Pit Schematic Diagram A-masonry ring B-stone or brick aggregate C-brick chamber D-30cm thick outer casing with coarse sand E-effluent from septic tank. Geocellular systems can be used to control and manage rainwater surface water runoff either as a soakaway or as a storage tank. AND ON TOP. Manning Open Channel Design. Operating Temperature: 95°C. below ground, buried in. At least 2. These can be used as both a soakaway and an attenuation scheme. Septic Tank Soakaway Design Guide Imagine a septic tank and soakaway kit that you or your builder could easily install in just 3 hours. See more ideas about septic tank design, septic tank, sewage system. Soakaway infiltration of stormwater runoff at site, neighbourhood and catchment scales has long been practised throughout the UK and Europe, and recharge studies have demonstrated their. Attenuation is where, with the use of flow controls, the water collected is. Putting it all together, below is a simple diagram of a typical domestic septic system: Illustration 3. 2 can be used. Digest. Low Impact Development Stormwater Management Planning and Design Guide. 50m from water abstraction points, boreholes, springs. A soakaway is used for surface water (rainwater from roofs, paved areas etc) A soakaway is typically a hole or structure filled with rubble / drainage crates) Septic tanks can ONLY discharge to ground via a drainage field. Soakaway Design Drawings in both CAD dwg and pdf formats. 20. Constructing a soakaway. This document is intended for those applicants proposing to submit designs and modelling outputs as part of planning applications for sites within Essex. This water flows out of the tank and into soakaway drainage field. how to construct a soakaway pit - septic tank soakaway constructionvideo will show you just how easy it. The premium BioDisc® sewage treatment system is available in four sizes for all types of domestic applications. This is a large drainage field, normally domestic Soakaways are smaller. 100x100x400mm OR. The only reason I say that is that our garden is not that big. . If other less labour intensive garden drainage options are not an option, installing drainage cube soakaway areas can be an effective way to improve your drainage. Download scientific diagram | Simple Soakaway with Overflow Example Source: IEAust (2006). Figure 7 shows a suitable connection method. 2m x 1. 15m from any building, and sufficiently distant from any other soakaway, including roof water. For. The trenches for the soakaway should be between 300mm and 900mm wide with a distance of 2m between trenches. The basic components of a compliant wet well are shown in this diagram but you are urged to check the latest edition for Sewers For Adoption for fully detailed and up-to-date guidance. This reduces the quantity of solids and also changes its composition to sludge, which builds up in the bottom of the tank. A soakaway drainage system is used to reduce or eliminate flooding issues by allowing surface water to be stored underground in plastic crates that slowly disperse the water back into the soil. 50 metres of a chalk river or aquatic local wildlife site. Nanotech Water Technologies has always been very responsive to all requests and forever eager to improve and simplify our processes and standards. We refer to a soakaway when we are dealing with surface water drainage. 8m x 1. Market depth display. This will let you know how much gravel. 2m MUST be supported to eliminate risk of bank collapse. This article describes how to construct a Soakaway for draining water away from a domestic garden and is best read together with my other drainage related pages linked from here. Local Authority Structures & Manholes. 25 = 4 crates required. A well-designed retention pond will reduce the negative environmental effects of stormwater runoff. 040) Example 1. Location – Mostly Septic tanks are suitable for rural & urban areas where proper sewer systems are not available. The garden is heavily landscaped, with many trees and shrubs which have grown mature over the years. Thank you for. The shape or footprint, of a septic system drainfield or leaching bed is determined by the following considerations: The size and shape of the land available in which septic components can be placed. Published 23 February 2021. The excavation can proceed in a similar manner to any deep drainage excavation. ® All our robust BioDisc® models cater for properties housing between 4-18 people. Key features for Soakaway pit designs are highlighted in the diagram below. All about Attenuation and Soakaway tanks. Tray. co. Drains are underground pipes that take water away from houses and buildings. Materials and labour fees. S Vent Pipe Covered Access Ope ni ng Covered Access Ope. For small soakaways serving a single property, it is unlikely that a trial pit will need to be any deeper than 1. Diagram of a soakaway Nicholls Boreholes & Ground Source are one of the very few installers that both drill and install systems in the South East rather than sub-contracting. Ask at the builders merchants, and explain what you want it for. The materials that must be. 2m x 1. grease), clarified water, and sludge (diagram reprinted from Tilley et al. Soakaway Pit Design. Things like making sure there is suitable access for desludging to take place, and keeping covers clear of obstruction (i. Percolation rate = 1500 lit/m3/day. Branch connections 9 4. Fill the 300mm square hole to at least the 300mm mark and allow to soakaway over night. Pedro gonzalez ramirez. So here are the Typical Details of Septic Tank and Soakaway form the dwgnet. au . Septic Tanks and Soakaway Page 11 ANNEXURE 1 – SABS 0400-1990 Tables 1, 2 and 3 ANNEXURE 2 – Diagram of a Concrete Septic Tank ANNEXURE 3 – Diagram of Various Storage Tanks ANNEXURE 4 – Diagram of a Trench Soakaway ANNEXURE 5 – Diagram of a Circular Soakaway On average, septic tanks are 4. For example, septic drainfield trenches generally run parallel to the. The general components of a soakaway system are described below:Design the septic tank soakaway to avoid blockages. The fixtures should be of smooth, hard, durable, impervious and corrosion-resistant materials, free from flaws and blemishes. Take the time that water takes to soakaway. 5m deep. Minimum soakaway drainage field distances. — A watercourse; or where that is not reasonably practicable. Check Details. To assess whether a soakaway is viable, a site assessment needs to be carried out and a long-winded (but relatively simple) calculation needs to be completed. To get in touch to discuss a project with us or request more information, send us an email or call on 01204 361547. Scalping. The adjacent picture shows an installed Septic Soakaway before the soil is replaced. includes: plants and sections. For small soakaways serving a single property, it is unlikely that a trial pit will need to be any deeper than 1. O. Septic Tank Diagram VisitA condensing boiler is any boiler that uses condensing technology to reuse the heat they generate from burning fuels such as gas or oil. Adjust your file. A typical soak route in Nigeria is typically 4 by 4. Press the guttering into the wet concrete to leave a clear imprint. The Sizing Calculator option allows the user to re-size the Soakaway by specifying a volume and a parameter to modify to achieve that volume. You will pay for surface water drainage in your bill in one of the following ways: a fee in the standing charge. This is a cross section of the designed swale. From Locatelli et al. youtube. Make the hole slightly larger around than the size of the drum. There are all details about the Septic Tank, Plan, Cros Section, Foundation, levels, manhole covers etc, So We hope this Septic Tank details also will be useful for you. Step 1. The soak away or drain field area should be downslope of any groundwater source. Nominal size – 1000 x 1000 x 400mm – 2. Unit weight – 16. Wastewater treatment works. 8m 3 . However, some older septic tanks do not have a soakaway and discharge effluent directly to a stream/river/lake (not permitted in Northern Ireland or Wales), or the sea. Soakaway construction is a low environmental impact solution to drainage because it is uses few materials. The water table should not reach the bottom of the pit at any time of the year. Small domestic soakaways are usually backfilled with rubble or hardcore which will have a porosity of around 30%. dwg format. Fig 2 – After a period of time the water discharging from the soakaway promotes the widening of the fissure system. common septic system design image. Why azure sentinel should be your soar and siem solution?Murray sentinel wiring diagram Silt trap sentinel bucket filter 160mm pipe drainage sewer pipework access series cover soakaway crates248 radio sentinel radio corp. Depending on the size of the tank, the property and the number of occupants, the cesspit can fill up quickly and needs to be emptied regularly; at. To. 8m deep) Excavated Dimensions For Septic Tank = 3m x 3m x 3. The footer pipe, is something I saw in various diagrams online,. ALL parts of the soakaway drainage field are required to be a minimum of: 10m from a watercourse or ditch. To be effective, soakaway areas need to have enough water storage. 2 cuts from each length of rod. Option 3: Rubble filled soakaway Guidance Diagram 7: Typical 'Rubble filled' soakaway system 2. For soakaways serving areas greater than 25m² reference should be made to BS EN 752-4, or BRE Digest 365 Soakaway design. Download scientific diagram | 5. 4 61 - 62 Maintenance 5. Soakaway infiltration of stormwater runoff at site, neighbourhood and catchment scales has long been practised throughout the UK and Europe, and recharge studies have demonstrated their. Dig out enough soil to create a hole at least as deep as the height of the 55-gallon drum plus any planned dirt covering for grass. Septic tanks must NEVER discharge into watercourses. They can be grouped and linked together to drain large areas including highways. Provided in fully editable AutoCAD . West Point Bridge Designer 2018 (Windows) Steel Connection Design EXCEL Spreadsheet. This is likely to be a fixed position, therefore if you begin elsewhere, even a minor miscalculation or. 1. 25m3 of water, so 1m3 divided by 0. All modern condensing boilers require a condensate pipe to run to a suitable drain. 1. The fill should be single sized gravel or similar material and the void ratio affects the storage volume of the soakaway so design values must be carefully chosen. ADVERTISEMENT. Length 7’3 breadth 6’10 Depth 5’4. Area (A) = V X P X 0. Carriageway to be reinstated using a HAUC Type 3 Construction. Figure 1 The General Arrangement of Components of a Soakaway System . g. Download scientific diagram | b: Construction of a soakaway pit for discharge of liquid effluent from intervention latrines. Make any adjustments required: insert text and pictures to your Bre 365 soakaway design digest, underline details that matter, erase parts of. Check Details. The risk of a failed soakaway is much higher with a septic tank. Broken down, labour costs average around £240 per day. 5m, are used for compact spaces. Digested sludge gradually buildsSoakaway pits are excavations in the ground filled with clean granular stone or other void forming material that receives “clean” runoff designed to infiltrate into the native soil. Soakaway design 4. Top or Side-Entry. 5 metres from the boundary. Soakaway should be at least 600mm from the wall to avoid causing damp to the footings. Then, add the heavy-duty landscaping fabric across the stone. 8m long, 1. being constructed. What is Septic Tank & it’s process – A Glance. Septic tank system work diagram does tanks typical works systems leach tank1 waste treatment dummies water soil soakaway they repair Septic system sewer county tank water diagram conventional treatment projects disposal Septic tank system systems biodigester diagram works water sewage. INTRODUCTION 1 2. from publication: Modelling the impact of. Water flows down into these areas and collects into rivers and streams. As a broad brush a Soakaway Size of 1m³ is sufficient to drain a roof area of approximately 50 square metres under normal conditions. For this, dig a hole at least 1. Septic tank and absorption pit dwg. It is a very simple technology to construct, operate and maintain for all kinds of users. "For run-off from 100m2 this will be 1 to 1. Size Of Soakaway and Septic Tank. 5 m below the invert level of the drain discharging to the soakaway. Hi all, We have recently moved to a 5 bedroom property with a Septic Tank we believe would have been installed some 50 years ago. Septic tanks will invariably be required for pig farms where any effluent is generated. After (just recently) reading to manufactures instructions concerning the soakaway its states it need needs to be. Soak Pit Schematic Diagram A-masonry ring B-stone or brick aggregate C-brick chamber D-30cm thick outer casing with coarse sand E-effluent from septic tank. A soak pit or a soakaway is a closed porous chamber that is directly connected to a primary treatment unit of residential or commercial building. Also check for visible blockages within the pipework. Summary: This Standard gives design guidance on how soakaways shall be incorporated into systems used to treat and store road runoff prior to discharging to ground. diagrams) To minimise the risk of freezing during prolonged sub-zero conditions, an internal “gravity discharge point” such as an internal soil stack (preferred method), internal kitchen, utility room or bathroom waste pipe e. As an aid, mark a stick 300mm from one end, place in the hole and fill up to the mark. Max. Permeable surfaceFull Drainage Design Suite. One thing we strongly advise is to check the grounding that the soakaway is situated on. If the rainwater is draining to a raingarden or soakaway the driveway construction can use traditional impermeable materials. Explore the Inlets page for more details on the different types of Inlets that can be specified. It is easier to maintain and replace parts of fittings to the WC. Quoting the EPA manual: Most onsite code requirements for system design of residential dwellings call for estimating the flow on a per person or per bedroom basis. This calculation produces Vp in secs/mm [conversion = (1/Vp) /1000]. Remove foundation plantings. Dig a large hole in the ground, line the sides with heavy-duty landscaping fabric, to keep the earth from over time clogging up the gravel. — An adequate soakaway or some other adequate infiltration system; or, where that is not reasonably practicable. Pump Station 8 Pipe Protection 8 Special Features 9. 2012 - v. A soak-pit is a closed porous chamber that is directly. We get commissions for purchases made through links on this website from Amazon and other third parties. Direct connection of ground floor WC to a drain 7 2. Soakaway Design. soakaway to balance determine the maximum storage temporarily inflow and outflow. Join for free. 2 – Hole filled with water. Soak Pit has the following advantages, It can be built with locally available materials and is easy to repair. Diagram of a Soakaway system. Site Suitability. Library. Used for: alternator and battery. Visit. This page includes describes some important construction details for soakaway pits, soakaway trenches and soakaway crate systems. 56010480AF - Jeep Wiring. The slope of the land in the area where septic. The rubble mixture should sit around 5-inches from the surface. Drainage. It was fitted with a condensate soakaway as no drainpipe/drain nearby. don’t cover them with soil or grass to try and hide them away). Design drawings for conventional soakaway pits, infiltration trenches and soakaway crates. Before going ahead with installing a soakaway a percolation test it is advised to perform to determine whether a soakaway will be an effective solution. Figure 1 below is a schematic diagram showing the general arrangement of the components of a soakaway system. (Only. - added pop-up messages and diagrams to explain levels in soakage trial pit and how to make measurements during infiltration test. S Vent Pipe Covered Access Ope ni ng Covered Access Ope ing Sludge Sludge. BRE Digest 365 is the most commonly used document. Soak Pit Design calculation. Many peoples are asking details about the Septic Tank and Soakaway pits. . How To Install A Septic Tank Soakaway Diagram Of The Brain. This is usually achieved with a number of chambers within the tank and the use of T pipes or baffles. Start by digging a pit approximately 1. A septic tank is designed to settle and retain the waste solids produced from a property. For deeper excavations please seek specialist advice. If a soakaway is blocked, you will often see puddles, waterlogging or dips in the ground near the site of the crate. The condensate pipework may terminate above or below ground level. 10. A worked example is as follows; 1 – Hole pre-soaked overnight. The team at UKDP can offer you expert advice and guidance on any septic tank or soakaway problems, so call us today on 01628 788600 or contact us. The Sizing Calculator is discussed in more detail in the Stormwater Control Sizing Calculator section. 2m, are suitable for commercial and industrial applications. The excess effluent (which is called sewage or wastewater) makes its way into the soakaway, and from there naturally soakaways away into the soil. f - is the soil infiltration rate, in m/s, determined in accordance with clause 3. You should receive some clips or ties with the crates. The Sizing Calculator is discussed in more detail in the Stormwater Control Sizing Calculator section. Modern installations are a single large chamber but still have separate compartments for solids and liquids. Then all you need to do is simple decide on the type of soakaway crate you require, and divide 1m3 by the volume of each individual crate. 8m, and so it could be excavated as. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. 8m (I. how to construct a soakaway pit - septic tank soakaway constructionvideo will show you just how easy it. Smaller crates, like 0. 5 litres to fill a volume of this size. diagrams) To minimise the risk of freezing during prolonged sub-zero conditions, an internal “gravity discharge point” such as an internal soil stack (preferred method), internal kitchen, utility room or bathroom waste pipe e. Stephen L Garvin. NB: If the water table is hit during the excavation, aAs you can see from the diagram, when the loo is flushed, water and waste enters the bowl and is forced round the bend into the pipe which carries it through the wall of the property at some point, to the main sewer. The test procedure is outlined here. Should not be close to another soakaway or in a location where the water may.