Waste water coming out from septic tank = 10200/day. from publication: Shared household septic tank: A case study of Fiapre in the Brong Ahafo. 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. Detailed design guidance is given in BRE Digest 365 or CIRIA Report C753. It, therefore, perform better than the single compartment tank. For example, you might experience flooding or a strange and unpleasant smell. 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. 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. 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. 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. The above Infiltration Rate of Soils values will be suitable for an initial or feasibility design, but detailed design must always take place based on site testing. Farms which can achieve very high levels of dry removal. 5m2; 19. Condensate soakaway container for use with limestone chippings. 5 feet wide, 8 feet long, and 6 feet tall. 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. 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. Illiquid Investments; Illiquid Market; Illiquid Markets; illiquidities; illiquidities; illiquidity. The soak away pit is of natural earth at the bottom which allows the wastewater to naturally drain the liquids down into the earth. 2 metres of the drainfield pipework. Your condensate is usually connected to a drain or gully rather than being allowed to soakaway. Growing tree roots interfere with pipes in the system, constricting, damaging, or even collapsing pipes. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. Also check for visible blockages within the pipework. There are also images related to soak pit design, soak pit images, soak pit drawingThe Soakaway Design Guide (July 2000) 1b The Soakaway Design Guide (May 2000) i Table of Contents Foreword Definitions and Abbreviations PAGE NO. Smaller crates, like 0. p = Number of persons served by the tank. Another idea: I had to dig a pretty large soakaway in the front lawn last year for the new porch roof - The maths say that this is of sufficient size for the new extension too, so I'm tempted to propose that I link the front house downpipe in to this existing drainage system. Using this formula we can quickly calculate the size of the soakaway that needs to be installed. Check Details. Septic tank and soakaway or small bore solid-free sewer. 8m x 1. Septic tanks that discharge to watercourses are illegal and are in breach of environmental law and will eventually leave. View all: McAlpine Flues & Boiler Accessories. For soakaways serving areas greater than 25m² reference should be made to BS EN 752-4, or BRE Digest 365 Soakaway design. 1 52 - 55 Connections 5. V = the time is seconds for the water in the test hole to drop by 1mm. The first diagram shows what's called a 'welded baffle cone'. 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. — An adequate soakaway or some other adequate infiltration system; or, where that is not reasonably practicable. Infiltration expertise from GRAF . This closes the pores and fissures at the excavation interface leading to. FREE SEPTIC TANK DESIGN. It should only be used when read in conjunction with the Essex SuDS Design Guide. Manning Open Channel Design. First, decide the size of the pit as per your requirements, usually, the size with (1 x 1 x 1. , RWG) 4D. How To Install A Septic Tank Soakaway Diagram Of The Brain. Septic codes typically specify design flows of 100 to 150 gallons/bedroom/day (378 to 568 liters/bedroom/ day), or 75 to 100 gallons/person/day (284 to 378 liters/person/day), with. A partition wall raised at a distance of half-length of the tank and a 150mm x150mm. The pipe end entering the soakaway must be at a depth of 25mm minimum and the end of the pipe cut at 45° Backfill the soakaway and drainage channels with the free draining gravel. from publication: Shared household septic tank: A case study of Fiapre in the Brong Ahafo. Adding a soakaway can be essential if you are installing a driveway or trying to reduce waterlogging in your garden. 8m, and so it could be excavated as shown in the diagram opposite. A septic tank is a system that collects and treats wastewater from a property. 5m is typically sufficient. Posted on 08 Sep 2023. 5 m for permeable areas up to 100m2draining to the. 5m x 0. The number of bedrooms and number of people in your home will determine the dimensions of the septic tank you need. Then place your topsoil above the gravel layer. Condensate drain piping to slope a minimum of 1/8″ per every 12″ horizontal. French Drains – How They Work. This allows for a settlement zone, 800mm deep and with a volume of water which allows the incoming effluent to. Here's an overview of both methods: Simple. 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. Pour water to 300mm in depth, measure from the bottom. Digest. Soakaway designs are crucial to ensure water is able to filter through the surfacing and head back into the environment. Download scientific diagram | Simple Soakaway with Overflow Example Source: IEAust (2006). If above ground the condensate pipe must be protected with a waterproof lagging. Minimum soakaway drainage field distances. Each Brett Martin crate measures 1200mm long, 600mm wide and. Find out how to build a drainage channel to collect surface water, and direct it to a dispersal point which leads to an existing. Below are a couple of lovely septic tank diagrams to show you the two most common types of septic tank baffles. As an aid, mark a stick 300mm from one end, place in the hole and fill up to the mark. 10. 8 m3. West Point Bridge Designer 2018 (Windows) Steel Connection Design EXCEL Spreadsheet. 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. Mech - elect - plumb. 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. 4 x 4 / = 2. This easy to follow guide talks through off mains drainage systems and soakaways. 0 Page 214 of 264 Figure 6. Make any adjustments required: insert text and pictures to your Bre 365 soakaway design digest, underline details that matter, erase parts of. from. If a soakaway is blocked, you will often see puddles, waterlogging or dips in the ground near the site of the crate. The water closets shall have a vent pipe of not less than 1½ inches in diameter. After this, add the remaining rubble so that it surrounds the drainage pipe entering the pit. AND ON TOP. The insides of the excavation can become smeared, particularly by mechanical diggers building a soakaway in clay soils. 78m3; Using 1. 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. These systems are designed to collect and remove surface water, either by emptying it into the sewer system, or by allowing it to drain back into the ground below. common septic system design image. A percolation test measures how quickly water drains away from the soil. FREE SEPTIC TANK DESIGN DOWNLOAD HERE Maintenance. Digest 365 is one of the most widely used BRE A traditional way of disposing of surface water from buildings publications, aiding designers to support planning and and paved areas, soakaways are used remotely from a public development applications. The Soak Pit is filled with coarse rocks and gravel. (Only anaerobic bacteria will remain active). Apologies for the delay. 6m deep) Cost Of Excavation: Manual labor was used, soil is very hard and rocky at some point so the cost of excavation would be. Figure 1 below is a schematic diagram showing the general arrangement of the components of a soakaway system. The performance of a soakaway is dependent on the shape and size of the soakaway, the surrounding soil’s infiltration characteristics and the depth to groundwater. This is usually achieved with a number of chambers within the tank and the use of T pipes or baffles. If the soakaway becomes blocked up with fat grease and sludge it will stop working. Hi. 2. Get Your FREE Online Quote Today! Save up to £590 PER YEAR on your heating bills. This page includes describes some important construction details for soakaway pits, soakaway trenches and soakaway crate systems. Estimate of Soak Pit. Key features for Soakaway pit designs are highlighted in the diagram below. For more complex designs, soakaways can take up to two days to install and therefore are likely to cost around £2,500. 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. Larger crates, approximately 1. ® All our robust BioDisc® models cater for properties housing between 4-18 people. When digging a hole for a soakaway 150mm of shingle on all side must be accounted for. This is a large drainage field, normally domestic Soakaways are smaller. (When calculating the size of a soak pit, the volume of water storage available for a rock-filled hole is 0. Soakaways in clay sub soils or serving roof/paved areas exceeding 100m2 Rainwater/paved area soakaway design Example 1 Oil/fuel separators Air tightness and testing Step by step guide to installing soakaway garden drainage. For example, in the past a hole of say 3 x 3 x 1 metres would necessitate an excavation of 9 cubic metres, producing a wall percolation area of 12 square metres; our design, as per sketch plans B-W 73/1 and B-W 73. The following diagram shows an overhead view of a septic tank distribution box and drain field: The effluent is slowly absorbed and filtered by the ground in the drain field. 855-925-0760 For Service or Request a Quote The Septic Tank: A Closer Look A soak pit, also known as a soakaway or leach pit, is a covered, porous-walled chamber that allows water to slowly soak into the ground. Soak Pit has the following advantages, It can be built with locally available materials and is easy to repair. 100x100x400mm OR. The soakaway is typically not that deep when compared to a septic tank. The pre-fabricated soakaway system offers an alternative to gravel when installing a French drain garden drainage system. design. 5m deep. 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. To be effective, soakaway areas need to have enough. 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. These effects are illustrated in the diagram below, taken from the. 15m from any building, and sufficiently distant from any other soakaway, including roof water. Download scientific diagram | | Map of lots found suitable for implementation of Soakaway Pits in the City of from publication: Modeling low impact development potential with hydrological response. To get rid of the smell fit the Maxi-Filtra. This is a large drainage field, normally domestic Soakaways are smaller. Far from being the cityOn average, septic tanks are 4. They resemble large milk crates but with a little more constructive stability and are bought in a flat pack form that you can fix together to form a box shape. 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. 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. : Septic Installation. Insert the soakaway bag with inlet holes facing the property. ) So: V stor = 0. 2m (7ft) from a boundary. 13,13-A, Nakshatra Arcade, IOC road, Chandkheda, Ahmedabad, Gujarat, India - 380060 +91 982 401 1921 . Volume of filter media = 10200/1500 =6. Interception of Oils is a vital component of soakaway design. This calculation produces Vp in secs/mm [conversion = (1/Vp) /1000]. We refer to a soakaway when we are dealing with surface water drainage. A soakaway requires excavation and removal of the existing ground, which is typically replaced with a formal structure, constructed using a. The ST is designed to have about 600mmm (2ft) of solids in the bottom. For deeper excavations please seek specialist advice. The stream is DEAD! This is a failed soakaway in a garden. This can cause erosion, flooding and sometimes cause instability problems for the slope and should be avoided. Follow these 6 simple steps to install soakaway crates – both quickly and correctly: Step 1 – Create space. Excavate a hole 300mm square to a depth 300mm below the proposed invert level of the soakaway pipes. Soakaway rate depends on the percolation rate and number of persons using the septic system. dwg format. from a sink, basin, bath or shower should be adopted, where possible. com (a) Diagram of typical existing chamber soakaway; (b) cross-section of typical existing chamber soakaway, section A–A 142 Water Management 161 Issue WM3 Assessment of existing soakaways for. How do you make a soakaway garden? by. A soak pit is a covered, porous-walled chamber that allows water to slowly soak into the ground and is also known as a soakaway or leach pit, and the pre-settled sewage from the septic tank is released to. A Rainwater Soakaway: What Is It? Nowadays, in the UK, installing a soakaway, sometimes referred to as a French drain, is critical to addressing both the efficiency of sewage drainage systems and groundwater runoff. Sanitary and rain drainage. A soakaway is essentially a point feature; it does not. In this guide, we will look at what a soakaway is and how it relates to a septic tank. Tray. g. 5 63 Associated Products 6 64 - 73 Stormcheck 6. The Soak Pit should be kept away from high. Once the hole is dug to the correct depth, add a layer of gravel at the base, approximately 1000mm. Carriageway to be reinstated using a HAUC Type 3 Construction. A stratum of sand and fine gravel is spread across the lowermost layer to aid in the dispersion of water. Area of soak pit = 6. 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. 5 metres from the boundary. Condensate waste is acidic and needs to be removed correctly. The pink area in the diagram below is the new extension. Size Of Soakaway and Septic Tank. It is critical that a civil engineering consultant is employed to. 0m in each direction is appropriate for buildability. Below are a couple of lovely septic tank diagrams to show you the two most common types of septic tank baffles. The Flow pipe should be minimum 75mm diameter. Dig the hole slightly deeper if you need to make the pipe line up better. 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. 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. 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. At least 2. The design spreadsheet works by calculating the inflow into the soakaway in all design storm conditions. 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. If this is not known, a depth of around 1. Start by digging a pit approximately 1. A carefully designed ‘soak away. Septic diagram tank systems orenco wiring panel control system pump advantex residential ax20 drain service services bbs ts cm good. from publication: Estimating the. Make a note of the dimensions of your trial pits on the provided results sheet. Soakaway Design Drawings in both CAD dwg and pdf formats. The wall separating the two is about two-thirds the length away from the inlet. The basic functions and the need for a soak pit. Polypropylene, ABS & Rubber Construction. This foul drain should have no manholes so as to eliminate risk. ,sinking soakaway in nigeria and africa part 2also more discussion about your construction worriesExcavation. The document focuses solely on variables so that the outputs from all drainage design software can be submitted. g. For small soakaways serving a single property, it is unlikely that a trial pit will need to be any deeper than 1. Soakaway Pit Design. 0m and 1. Its installation requires quite a small land area compared to other technology such as say a leech field. An 800 Litre Soakaway will cost between £1,000 and £1,100, while a 950 Litre Soakaway will cost between £1,100 and £1,200. #936692. Most homes have separate drains for rainwater and wastewater. Soakaway Drainfields. The backwash should never be discharge straight into the typical basement pumping station. Soakaway should be at least 600mm from the wall to avoid causing damp to the footings. Soakaways also known as drainage pits are a simple way of collecting and dispersing surface and storm water. Leach field or soakaway field size requirements for these septic system designs: Trench Line Specs, Detailed Specifications, Leach Fields, Gravelless Systems, Deep Trench Systems, Shallow Trench Systems, Cut and Fill Systems, & Absorption Bed Systems. A soakaway is mainly a useful method of controlling surface water drainage and preventing surplus water from getting into your sewer system and overwhelming it. Condensate Soakaway Code: SOAK1GR 500mm minimum 300mm Hole width 200mm CODE: SOAK1GR Hole and SOAK1GR filled with 10mm Limestone Chippings Holes in SOAK1GR to face away from wall Hole depth 400mm Ground Level Maximum Possible Gradient Side Connection Top Connection 2 300mm 1 3 Ø110mm Ø100mm 5 4 CONDENSATE SOAKAWAY, SOAK1GR Maximum Possible. It is now easier to find the option to design soakaways from modular geocellular units. 5m from any boundary. Any qualified gas engineer will easily rectify this for you. 2 56 - 57 Ventilation 5. On the next day, fill to the 300mm mark again and observe the time it takes to soakaway in seconds, from 70% full to 25% full. Below, we have described some of the most common ways that your system can look: Wastewater:. However, the attenuation mechanisms operating on road runoff to reduce pollutant loadings at the discharge point below the soakaway, and within the unsaturated zone above the water table, have in the past been poorly understood. 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. . Many older septic systems were discharged directly into ditches, streams, etc. Wastewater treatment works. Soakaway Design. A typical soak route in Nigeria is typically 4 by 4. As you can see the depth is shallow to ensure aerobic conditions. com. don’t cover them with soil or grass to try and hide them away). Battery negative - 68039955AH | Mopar Parts. A soakaway is an efficient and low-environmental impact way of dealing with either foul or excess surface water in your drainage system. Septic tank and absorption pit. 4 sqm. People are increasingly calling for local infiltration of rainwater in response to ever more common severe flooding. 1. I assumed it was for either an extension of the leach field or for ensuring air circulation in the field. A t = Area of the drainage field in m 2. 1,000-gallon septic tanks are 8 feet 2 inches long, 5 feet 8 inches wide, and 5 feet 1 inch deep. 3 = 2. Dig a hole in the ground at the planned location of the dry well. 4. Pipes penetrating walls 15 8. 1. Pre-settled effluent from a collection and storage/treatment or (semi-) centralized treatment technology is discharged to the underground chamber from which it infiltrates into the surrounding soil. See moreSeptic Tank Soakaway Design Guide Imagine a septic tank and soakaway kit that you or your builder could easily install in just 3. The solids being heavier than the waste liquids, settles down at the bottom of the. — A surface water sewer. Thank you for. Illustration 4. Our SuDS Observatory was established to identify how SuDS schemes can affect groundwater. Provided in fully editable AutoCAD . If you are looking for technical information sheet on McAlpine plumbing products, you can download the latest catalogue from this url. The basic functions and the need for a soak pit. Therefore, we would need 10,058/3058 = 3. We supply trade quality DIY and home improvement products at great low prices. Step 1: Work out how much drainage capacity you need. [5] Set up the pump chamber as you would the septic tank. Low Impact Development Stormwater Management Planning and Design Guide. Install a pump chamber after the septic tank. Usually a minimum size of 1. Design drawings for conventional soakaway pits, infiltration trenches and soakaway crates. Structural Steel Design. The rain water in these cases is taken to a large drainage pit in the garden called a soakaway. 20. Pipe runs near buildings 15 9. The adjacent picture shows an installed Septic Soakaway before the soil is replaced. Check Details. Then a soakaway might be your answer. Hole 300mm square to depth of 300mm below where pipe will go into the soakaway. It will also show you which septic tank scenarios work best with a septic tank soakaway pit. Condensate Soakaway Code: SOAK1GR 500mm minimum 300mm Hole width 200mm CODE: SOAK1GR Hole and SOAK1GR filled with 10mm Limestone Chippings Holes in SOAK1GR to face away from wall Hole depth 400mm Ground Level Maximum Possible Gradient Side Connection Top Connection 2 300mm 1 3 Ø110mm Ø100mm 5 4. A foul and surface water connection. It contains detailed specifications, dimensions, codes and images of various fittings, traps, valves, connectors and accessories. Cut 3 1⁄2 and 2 1⁄2 in (8. County septic to sewer projectsSeptic systems and soakaway pits Septic tank diagram. The pipe runs down a slope and, at acute angles, with numerous lateral pipes connecting to it. Please ensure that you follow the manufacturers detailed health and safety guidelines that will be provided in the manual when excavating your hole. Half storage volume empty time. com. RM HPG59X – Digging a drain soakaway in a small front garden. This allows surface water that would otherwise begin to pool to soak back down into the earth. 2: Plastic units used in a soakaway from publication: Methodology for adapting hydrological impacts and adapting hydrological model to risk assessment | In the. Essex. 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. Fill with water to depth of 300mm. Hi, we had a new combi fitted 10 months ago. From Locatelli et al. stock vectorSeptic tanks are simple. Adjust your file. 2. Overview of a Typical Septic System. 5m deep. Remember to consider the drainage falls required. CONCRETE WITH THICK RENDERING. The water table should not reach the bottom of the pit at any time of the year. 3d illustration of geothermal heat pump diagram on example of detached house. A worked example is as follows; 1 – Hole pre-soaked overnight. 25m3 of water, so 1m3 divided by 0. After this, remove the guttering and smooth any ridges in the concrete. Water flows down into these areas and collects into rivers and streams. Rajesh November 22, 2019 Reply. 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. Overview of a Typical Septic System. It was fitted with a condensate soakaway as no drainpipe/drain nearby. 3 58 - 60 Typical installation procedure - soakaway 5. I can offer, in general, that a soakaway pit cannot treat sewage effluent effectively - below about 1/2 metre of soil depth there's not enough oxygen to support aerobic bacteria that are needed. Garden or driveway soakaways are usually rectangular pits or trenches and will typically be between 1. how to construct a soakaway pit - septic tank soakaway construction This video will show you just how easy it is to. The process is as follow: Bore a hole 150mm dia to 1m below ground level. Introduction: Attenuation cells, (also known as Storm Cells, Soakaway Modules, and Storm Crates) are the modern equivalent of a soakaway. Not only this, but a soakaway also has other handy uses: They mitigate flooding risks during heavy rainfall, helping to prevent resultant damage to the foundations of properties. A diagram looks a lot like this; it goes over the ins and outs of the tank and the in-depth system that manages your waste. If you have a question about your septic tank soakaway give us a call on 01759 369915 and we can normally arrange a free survey and diagnosis of the extent of the soakaway system problem. Inflow to the soakaway I = A x R where: A = the impermeable area drained to the soakaway; R = the total rainfall in a design storm (a 10 year return period should be used); calculation of R is shown in the box below. Fig 3 – The fine grain deposits are subsequently transported through the fissure system. Bore a hole 150mm in diameter with an auger, to a depth of one metre. Save. The current edition covers details of foul water drainage, both above and below ground, pipe sizes, protection of pipes, manholes and inspection chambers. The soak pit is to be a hole filled with rocks. Whenever there is a risk that a site might flood or the ground become waterlogged the sewage infrastructure should be installed as per the diagram below: The foul drain from the building should lead directly to a raw sewage pump station. Download scientific diagram | A septic tank and leach drain system (L) and soakaway system (WAPHD, 2014). We have been working with Nanotech on various projects, in Ghana. Description. 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. 38 times the volume of the hole. Connecting a waste pipe to a 110m. Viewer. The pre-settled sewage from the septic tank is released to the underground chamber, where it infiltrates into the neighboring soils. Length 7’3 breadth 6’10 Depth 5’4. 4. Pedro gonzalez ramirez. Presby System in Stow - Curtis Septic, Inc. Jeep Tj Radio Wiring Diagram - Free Wiring Diagram. The adjacent picture shows an installed Septic Soakaway before the soil is replaced. 3. Digested sludge gradually builds The performance of any soakaway system is dependent on the soakaway construction details being designed and installed correctly. #1. Note: appearance of your Comment below may be delayed: if your comment contains an image, photograph, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. assess how effective these systems are at reducing pollution migration from subsurface activities. Remember, any excavation deeper than 1. Provide Oregonians with easy access to important information about their septic systems. At least 2. 040) Example 1. A soakaway system normally includes screens, a catch pit, a septic tank, soakaway pit and trenches, and the associated dung channels. 5 x 0. As more and more surfaces are sealed with buildings, car parks and roads, the sewer system is having to work harder, especially in built-up areas, and. If your property has the wrong drain connections, you could be causing. Imagine a septic tank soakaway kit that came with all th.