Soakaway Design in Scotland. Our 1000 gallon (4500 litres) septic tanks weights 4. Remember, septic tanks are designed to encourage the separation and decomposition of solid waste. It is best to construct a single compartment for small capacity septic tanks. A soakaway is a drainage system in Rhodesia S80 3 which involves digging a hole in the ground and it filling with rubble. A soakaway is a drainage system in Bedfordshire LU1 4 which involves digging a hole in the ground and it filling with rubble. 2 can be used. Soakaway Design in Tandridge. The discharge to the watercourse stopped and diverted to a drainfield, designed and constructed to the current British Standard 6297:2007. Soakaway Design in Crawley. 1. 2 cuts from each length of rod. 1-2020 7 08. 4m above the tank bottom. The phrase soakaway is often, wrongly, used in relation to septic tank and sewage treatment plant discharges to ground: 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. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. Soakaway Design in Hertfordshire. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. Soakaway Design in Causeway. There will be a pipe placed within the hole which will lead all the excess water from surrounding areas into the pit. Septic Tank Regulations in Swansea -. Drainage Field Design 5 06. Contact WTE Ltd. Options for flow through tank partitions 300mm Partition wall with slots Top of partition 150mm W. To calculate the size of the soakaway, use this formula: Area = P x V x 0. The Soakaway Design. There will be a pipe placed within the hole which will lead all the excess water from surrounding areas into the pit. A septic tank takes raw sewage in, allows the solids to settle (sludge) and allows the remaining liquid to flow into the surrounding soil by means of a soakaway. efficiency is only moderate (referred to as. The water released from a sewage treatment plant , however, has been through at least two stages of treatment and is clean and safe to be released directly. Regulatory Responsibility 7. 3. 14 Protection of pipework;. A Soakaway is used in a Septic Tank or Sewerage Treatment Plant system when the discharge from your tank is not emitted directly to a watercourse. Soakaway designs are crucial in Tandridge RH8 9 to ensure water is able to filter through the surfacing and head back into the environment. The soak pit shall not be less than 900mm in diameter& 1500mm in depth below the invert level of the inlet pipe. This allows rain water to gradually filter through the surfacing and go back in the ground. The soakaway should not be located within 10m of potable water supplies in order to avoid possible cross-contamination. Soakaway Pit Design. A soakaway is the drainage system used to discharge wastewater from a private sewage system like a septic tank or domestic treatment plant. A soakaway is the drainage system used to discharge wastewater from a private sewage system like a septic tank or domestic treatment plant. This allows rain water to gradually filter through the surfacing and go back in the ground. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. Underground septic tanks require a drain field that can be fitted with a soakaway. (e. com. A soakaway is a system that allows wastewater to be absorbed into the ground. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. Soakaway designs are crucial in Brentwood CM15 8 to ensure water is able to filter through the surfacing and head back into the environment. Septic tank soakaway design drawing. However, they should also be serviced when they start to smell because this can be the first sign of a problem. Septic Tank & Sewage Treatment services; Groundwork, Landscaping - and much more! We are skilled and experienced drainage and water supply consultants and technicians offering a fast and efficient service for all problems with blocked, cracked or collpased drains, burst or leaking pipes and septic tank, soakaway & waste treatment systems. SEPTIC TANK REINFORCEMENT ARRANGEMENT 05-200 B 05-200 B 05-200 B R 100 4-200 R 100 7-250 B R 100 7-250 B. If there is no intention or no need to reuse wastewater, collected stormwater or greywater, soak pits can offer a cost-efficient opportunity for a partial treatment of waste- grey- or stormwater from a primary treatment (e. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. 3. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. 3. Soakaway Design in Watnall. There will be a pipe placed within the hole which will lead all the excess water from surrounding areas into the pit. (4) The soakaway/French drain should not be located less than 2 metres from Septic tank drainage field costs vary depending on its size and type. 3. Excavators value my designs because it makes their jobs easier. (ii) be designed in accordance with SANS 10400-P, or by a competent person. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. There are different types of septic tank soakaway, and in some cases, this element to your septic system can be the cause of. 18 9180 1. Infants, pregnant women, the elderly and. ; the Wyoming Environmental Quality Act, W. All septic tanks require emptying ONCE A YEAR. Here is another type of soakaway design. Septic soakaway bed / drainfield shape & layout guidelines: This septic system design article discusses determination of a conventional drainfield shape or layout. Soakaway Design in Salisbury. Soakaway Design in Swansea. 16-3-101 et seq. 60 1. If the base is constructed on a gradient the water will naturally collect at the low points. while A Soak Pit or a soakaway is a closed chamber directly connected to a septic tank. Depth should be between 1. Routine maintenance of pipe network essential. Keep it. Therefore, we would need 10,058/3058 = 3. There will be a pipe placed within the hole which will lead all the excess water from surrounding areas into the pit. Soakaway Design in Bagshot. Length of Septic tank = (4/5) x. a lawn). Septic tanks must be constructed to standard design. We are happy to help, call us on 0800 3101092 or via our contact form. 10 Soil waste. Soakaway designs are crucial in Omagh BT78 1 to ensure water is able to filter through the surfacing and head back into the environment. S. A soakaway is a drainage system in Cornwall PL14 6 which involves digging a hole in the ground and it filling with rubble. septic tank soakaway kitsyou need to install a new septic tank and soakaway? Would you like a s. This allows rain water to gradually filter through the surfacing and go back in the ground. Homeseptic; Free Quotes for the Installation of Septic Tanks, Sewage Treatment Plants & Soakaways. This allows rain water to gradually filter through the surfacing and go back in the ground. A septic tank soakaway drainage field system performs two functions:-. Expect to pay between £830 and £1,140 to install a soakaway drain underneath a driveway. 05 cubic meters per year per individual. table of contents scope. A ground assessment and soil percolation test should be carried out to determine. There will be a pipe placed within the hole which will lead all the excess water from surrounding areas into the pit. I suspect that's in part because of normal septic tank design that relies on baffles to control the flow of solids and wastewater into the tank, to control agitation inside the tank's treatment area, and to prevent the floating scum layer from blocking the tank inlet or outlet. Soakaway Design in Colchester. A residual pressure of not less than 170Pa (25 psi) should be considered in the design. Ensure access for emptying of septic tank, as well as availability of sludge treatment and disposal. If discharging to ground the written rules demand you. A Septic Tank, typically underground, for collecting sewage and allowing it to decompose through bacterial activity before draining. A soak pit, also known as a soakaway or septic tank soakaway, is an underground structure designed to receive and disperse wastewater from septic tanks or other sources. iv) Septic Tank . Installation, Replacement or Repairs to Septic Tanks If the septic tank and soakaway was installed more than 15 years ago, then you do not need permission to replace or modify your septic tank or soakaway. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. SP-1500-2b. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. 50 1. 1. plain pipe from the septic tank to the soakaway, followed by 16 metres of specially perforated 110mm diameter piping and fittings. Drainage Fields Tests 6 07. The bottom of the tank should be less than 3m below the level where the vehicle will stand. 11 Surface water soakaways; 5. A drainage field provides biological treatment of the water, treating it prior to entering the ground. (sewage) flows for basic treatment. So basically the difference between Septic Tank and Soak Away is that a Septic Tank is deeper and plastered then floored, while Soakaway is not given such treatment as the floor is left like. They have supplied multiple potable and sewage systems, to our client between 2017 and 2022. Soakaway Design in Camborne. A Sewage Treatment Plant can discharge directly to a drainage ditch, watercourse or river. Construction development of a septic tank and absorption well design. For an easy-to-access garden, you can expect a small soakaway to cost around £1,000. Don’t flush non-biodegradables down the toilet. Design the Septic System: Engage a professional septic system designer or engineer to create a suitable system design based on the percolation test results and local regulations. RotoTank™ has the largest variety of tanks in Southern Africa, making tanks from as small as a 50lt-tank to up 40 000lt TANK. Septic tank drainage fields are an integral part of a septic system. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. A soakaway is a drainage system in Kilnhurst S64 5 which involves digging a hole in the ground and it filling with rubble. Let us estimate the Tank size for a Home – 5 Members. POLPRASERT, C. There will be a pipe placed within the hole which will lead all the excess water from surrounding areas into the pit. The. How a septic tank system works. Don’t flush non-biodegradables down the toilet. Soakaway designs are crucial in Moat CA6 5 to ensure water is able to filter through the surfacing and head back into the environment. A t = Area of the drainage field in m 2. a septic tank is provided; and. Example B: 4 Bedroom + 5 Bedroom = 12 people: 12 x 150 = 1800L = 2000L = 3800L. Ensure lid remains in place. They are called septic tank soakaway crates. Septic Tank Maintenance in Bagshot -. number of persons that the unit is designed to serve. A septic tank soakaway is used to safely drain off treated wastewater, thus allowing the effluent level in your tank to remain constant, leaving remaining organic solids to degrade with the help of bacterial breakdown. 8 AM - 12:00 & 1:00 - 5 PM Monday to Thursday 8 AM - 12:00 & 1:00- 3 PM Friday. 822-2615 [email protected] soakaway is a drainage system in Gwynedd SY20 9 which involves digging a hole in the ground and it filling with rubble. Therefore, we would need 10,058/3058 = 3. In addition, municipal planners need to recognize that the worst sanitary conditions usually How much Reinforcements for soakaway Septic tank. As part of a septic tank system, the soakaway treats the effluent. how to construct a soakaway pit - septic tank soakaway constructionvideo will show you just how easy it. Soakaway designs are crucial in Boston PE21 9 to ensure water is able to filter through the surfacing and head back into the environment. 6 Design of other drainage structures such as linear drains is discussed in NRA HD 33 Drainage Systems for National Roads. It, therefore, perform better than the single compartment tank. If discharging to ground the written rules demand you. Soakaway designs are crucial in Wrexham LL14 4 to ensure water is able to filter through the surfacing and head back into the environment. There are about 165,000 households in Ireland with a septic tank system and a well. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. There will be a pipe placed within the hole which will lead all the excess water from surrounding areas into the pit. 9K views 4 years ago. [2]TABLE 1 SEPTIC TANK SIZES No. In septic tank design, a detention period of 24 to 48 hours is considered depending on the average daily sewage flow. Soakaway Design in Berkshire Soakaway designs are crucial in Berkshire RG7 4 to ensure water is able to filter through the surfacing and head back into the environment. 2. Tanks shall be watertight and fabricated to. Specific design criteria must be applied to the settlement tank and soakaway system. So here are the Typical Details of Septic Tank and Soakaway form the dwgnet. Information also for Septic System Engineers Design Consultants, Septic ProductsIn order to calculate the Septic tank size know about the standard length and width ratio of Septic tank. 25 = 4 crates required. This allows rain water to gradually filter through the surfacing and go back in the ground. . There will be a pipe placed within the hole which will lead all the excess water from surrounding areas into the pit. This article and its tables explain how to determine the size and design of a septic leachfield or soakaway bed or drainfield. The cost to install a septic system depends on the type, home size, and tank material. The minimum width of a septic tank is 600mm and the depth should be 1225mm including a freeboard of 300mm from the water level. 12 Component requirements; 5. Soakaway designs are crucial in Dalmellington KA6 7 to ensure water is able to filter through the surfacing and head back into the environment. Soakaway Design in Iron Acton. Soakaway designs are crucial in Scotland DE73 8 to ensure water is able to filter through the surfacing and head back into the environment. We have been working with Nanotech on various projects, in Ghana. 3. . This regulation is promulgated pursuant to the Wyoming Administrative Procedures Act, W. RotoTank™ has three strategically placed large factories in South Africa,. for details of our design service. For 16 to 20 people the size should be 1,2m x 2,6m x 1,4m deep (4 368 litres). ) Design Considerations: (a) Sufficiently large to provide a minimum capacity for 3 days' storage of wastewater. Surface discharge of septic tank or aerobic unit effluent shall not be approved by the Department of Health or a local health department acting as its agent. Soakaway designs are crucial to ensure water is able to filter through the surfacing and head back into the environment. 2. For free advice with septic tank problems or septic tank regulations then please cal 0800 907 0051. RAJPUT, V. Soakaway Design in Omagh. A Sewage Treatment Plant can discharge directly to a drainage ditch, watercourse or river. Soakaway designs are crucial in Clearwell GL16 8 to ensure water is able to filter through the surfacing and head back into the environment. Some advantages on why one must consider soak pit for discharging wastewater. 8m wide, 1. Use septic-safe toilet paper. This allows rain water to gradually filter through the surfacing and go back in the ground. This allows rain water to gradually filter through the surfacing and go back in the ground. 5 to 3 yrs. The basic functions and the need for a soak pit. P = the max. The percolation test calculations for a soakaway are as follows. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. Soak Pit Construction and Design Manual. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. This allows rain water to gradually filter through the surfacing and go back in the ground. This allows rain water to gradually filter through the surfacing and go back in the ground. (3) The grease trap, piping and related fittings are optional extra items. The construction of a drainage field is very different to the construction. 3. 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. 1. Any distribution of the Catalog content (to other. DESIGN AND CONSTRUCTION STANDARDS FOR SEPTIC TANKS, SOIL ABSORPTION SYSTEMS, AND OTHER SMALL WASTEWATER SYSTEMS Section 1. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. 3. 3. septic tank soakaway design. A horizontal, cylindrical tank must be at least 60 inches inWe sell septic tanks and septic tank soakaway kits. 3. Soakaway designs are crucial in Taunton TA1 3 to ensure water is able to filter through the surfacing and head back into the environment. Soakaway designs are crucial in Causeway NP26 3 to ensure water is able to filter through the surfacing and head back into the environment. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. Pedro gonzalez ramirez. The EN12566-3 is also required for CE marking, and CE marking is mandatory in the UK. A complete septic system—including a leach field (also called a drain field), tank, and piping—costs $10,000 to $25,000. 94. The design of the septic tank is based on factors such as the . A soakaway is a drainage system in Pool TR23 0 which involves digging a hole in the ground and it filling with rubble. 5 litres to fill a volume of this size. Soakaway Design in Stafford. Septic Tank Soakaway. Repeat test three times. Soakaway designs are crucial in Cirencester GL7 1 to ensure water is able to filter through the surfacing and head back into the environment. Sewage generation = 85 % of water supply. 3. The solids being heavier than the waste liquids, settles down at the bottom of the septic tank concrete slab floor. Soakaway Design in Brentwood. Ensure their Drainage Field has been correctly designed and installed to meet This should govern the planning of your system and will inform whether a septic tank will be suitable for your property. Enjoy. A soakaway is a drainage system in Clacton-On-Sea CO15 3 which involves digging a hole in the ground and it filling with rubble. septic tanks. 1. 5m2. Septic tank and absorption pit dwg. It serves the function of letting the wastewater coming from the septic tank to slowly soak into the underlying ground. Sanitary and rain drainage. A soakaway is a drainage system in Staffordshire ST13 8 which involves digging a hole in the ground and it filling with rubble. Form the Floor Lining. A single tank is used most often, but multiple tanks can be. Drawing title 24 APRIL 2018 DCNM STANDARD DESIGN FOR COUNCIL LEVEL HOSPITALS IN TANZANIA JCR STP. Soakaway Design in Bridge. 10 Septic tank outputs; 5. TREATMENT PLANTS AND SEPTIC TANKS DF-V0. CAPACITY OF SEPTIC TANK:-capable of storing sewage flow during detention period &extra volume of sludge for . The length of a rectangular septic tank should be 2 to 4 times its width. It should be directed into the rainwater or storm drain system of the mains drains or into a soakaway, but never into a foul water system. A soakaway is a drainage system in Devon EX15 3 which involves digging a hole in the ground and it filling with rubble. V p = Percolation value. Advantages. Soak pit is not suitable for clod climate areas. Carlow Concrete Tanks is one of the leading suppliers of domestic septic tanks in Ireland. The septic tank wall thickness should be a minimum of 230mm and the. Modern Septic Tanks. There will be a pipe placed within the hole which will lead all the excess water from surrounding areas into the pit. There will be a pipe placed within the hole which will lead all the excess water from surrounding areas into the pit. Scum on the surface is also prevented from leaving the tank. So if we take our Brett Martin Stormcrate crates as an example, each crate holds 0. 3. The sludge generation rate in septic tanks is around 0. A septic tank consists of one or more concrete or plastic tanks of between 4000 and 7500 liters (1,000 and 2,000 gallons); one end is connected to an inlet wastewater pipe and the other to a septic drain field. What Is the Design of a Septic Tank? A septic tank must be designed with acid-resistant inlet and outlet baffles or tees, inspection pipes at least 6 inches in diameter over both inlet and outlet, and an access manhole at least 12 inches in diameter. Where practical the soakaway should be. Soakaway designs are crucial in Beer EX12 3 to ensure water is able to filter through the surfacing and head back into the environment. In septic tank design, a detention period of 24 to 48 hours is considered depending on the average daily sewage flow. They comprise an underground tank for anaerobic treatment followed by a soakaway tank or pipe system to encourage effluent flows to percolate into the. This allows rain water to gradually filter through the surfacing and go back in the ground. Soakaway pits/trenches are however necessary. The reason behind this is also clear. Click to learn more. Soakaway Design in Winchester. The following points offer a quick overview of the main rules for septic tanks: Tank must be rated to BS EN 12566-1 standards. The design, spacing and materials for manhole steps shall be approved by the Authority. There must be at least 48 inches between the inlet and outlet baffles. This ensures that there is uniform ponding and infiltration across the base of the soakaway. (1982): Disposal of septic tank effluent. Ultimately, what you'll pay to install a septic tank depends on the size, type of system, and material. The soakaway is also known as a drainfield or leech field. 5K subscribers Subscribe 94 7. It is best to construct a single compartment for small capacity septic tanks. The size of the septic tank is based on the number of occupants in the house or it is based on the number of bedrooms in the property. A partition wall raised at a distance of half-length of the tank and a 150mm x150mm hole is made at 450mm height in the wall to connect both chambers. Authority. This allows rain water to gradually filter through the surfacing and go back in the ground. It can be sent to a conservancy tank where the sewage is periodically removed by a ‘honey sucker’. This totally depends on the size of the soakaway pit and the bar spacing. includes: plants and sections. Viewer. 2 can be used. Septic Tank Regulations in Law -. Our team are always on hand for advice and assistance on the cost of a septic tank system. It serves the function of slowly letting wastewater soak into the ground. There will be a pipe placed within the hole which will lead all the excess water from surrounding areas into the pit. 6 Septic Tanks, Holding Tanks and Soakaways Septic tanks and soakaways are used to store and treat foul flows from premises, prior to future connection to the main sewerage system. a soil percolation time (rate) of 60 minutes for water to fall 150mm (N. As above said, the capacity of septic tank should be designed correctly because insufficient tank size may result in wastewater backup to the house or it coerces us to clean the water often and also it will increase the maintenance cost. The system allows contaminants and impurities. 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. The design and construction of septic system drainage fields must be carried out by qualified and competent contractors. 634–641. Suppose we have to Design a Septic Tank & Soak Pit for 10 Residential Buildings. Soakaway Design in Warrington. An alternative septic system costs $4,000 to $15,000 installed. Figure 1 below is a schematic diagram showing the general arrangement of the components of a soakaway system. There will be a pipe placed within the hole which will lead all the excess water from surrounding areas into the pit. The middle layer of effluent exits the tank and travels through underground perforated pipes into the. You're not allowed to use. Clearances or isolation distances for septic tank, drainfield, soakaway bed, & wells: Septic tank or field setbacks & clearances for septic systems to wells, buildings, property lines, & distances to other site features. 5 and 4m deep, but never less. that a soakaway pit cannot treat sewage effluent effectively. A standard septic tank in Nigeria is 8 by 10. This is an illustration on how to construct a low volume septic tank plus soak pit. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. This allows rain water to gradually filter through the surfacing and go back in the ground. Our experienced engineers can fix any problem you might see with your septic system. Materials such as the crate, membrane, pipe, gully,. O. For over 27 years, I’ve enjoyed positive working relationships with clients and Health Departments in 30 counties in Indiana. 2. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. This allows rain water to gradually filter through the surfacing and go back in the ground. 3. 8m (I. In Britain, the 1956 Code of Practice was revised to become CP 302:1972, and included coverage of settlement tables, installations, treatment of sewage by aeration and removal of solids from secondary effluent. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. It allows the effluent to percolate into the surrounding soil, where it is treated naturally through biological processes. This allows rain water to gradually filter through the surfacing and go back in the ground. sloping towards the ditch or soakaway. Septic tanks come in many shapes and sizes. Pre-settled effluent from the septic tank is discharged to the underground chamber from where it infiltrates into the surrounding soil. This reduces the quantity of solids and also changes its composition to sludge, which builds up in the bottom of the tank. Since one cubic foot can contain 7. Soakaway designs are crucial in Herefordshire HR2 0 to ensure water is able to filter through the surfacing and head back into the environment. If your kitchen sink is fitted with an automatic waste grinder these volumes should be increased by 30%. Our Septic Tank system incorporates a 3-stage tank with three. Septic Tank Regulations in Hythe -. SEPTIC & SOAKAWAY PIT President's Office, Regional Administration and Local Governments. 05 cubic meters per year per individual. The systemSoakaway Design in Pensilva. This article provides answers to common questios about the required diistances between septic system components and. Soakaway Design in Dalmellington. Therefore, water from a septic tank will need to undergo further treatment and cleansing in a soakaway or drainage field before it can be safely released into the environment. Septic Tank Regulations in Guide -. the HOMESERVE Design® and HOMESERVE. S. 2. Soakaway Design in Chapelgate. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole. Water Science and Technology. The maximum depth to consider when determining tank capacity is 78 inches. Here are the steps to design a soak pit: Determine the size of the. 5m- 1. The process is as follow: Bore a hole 150mm dia to 1m below ground level. Septic Tank is deeper than Soakaway, unlike Soakaway, the body plastered and the floor, floored. It disperses septic effluent into the soil, without causing problems due to soil saturation and 'Backing-up' of the system. A soakaway is a drainage system in Lowestoft NR33 0 which involves digging a hole in the ground and it filling with rubble. Soakaway designs are crucial in Chesterfield S41 7 to ensure water is able to filter through the surfacing and head back into the environment. Septic Tank Design 2-3 Chambers. Septic tank cost: $1,500-20,000 (CAD 1,900- CAD 25,800) Labor cost: $1,500-$4,000 (CAD 1,900-CAD 5,100) Drain field replacement: $1,000-$5,000 (CAD 1,300-CAD 6,500) The wastewater your household creates is full of dangerous bacteria. You should not direct rain water into a. 25. Soakaway Design in Moat. 3 Siting of Septic Tanks and Soakaways Septic tanks should be sited min 7m from any habitable parts of buildings. Materials and labour fees. The next step is to set up the floor of the septic tank. g. design and supply a holding tank to be located behind the septic tank, complete with a submersible pump and float switch to transfer the. 5 = 1620 gallons of septic tank capacity - this is probably nominally a "1500-gallon septic tank". Under-sizing your septic tank will result in the water produced being high in suspended solids and risks blocking your soakaway. The current use and design of septic tanks in the UK is specified by British Standard . This is a CAD dwg typical reinforced concrete septic tank reinforcement detail. p = Number of persons served by the tank. 9K views 4 years ago Easy Drain is a gravel free alternative. The ST is designed to have about 600mmm (2ft) of solids in the bottom. Soakaway designs are crucial in Dyke PE10 0 to ensure water is able to filter through the surfacing and head back into the environment. A soakaway is a drainage system in Bexhill TN39 4 which involves digging a hole in the ground and it filling with rubble. This draining system collects water from areas such as gutters and driveway drains which then flows down a pipe and into the hole.