1. Bathroom. Use a 150mm (minimum) layer of 40mm crushed rock. AQA. 5 ha (Barber Citation 2014). Silt traps, also referred to as gross pollutant collection traps are economical devices used for the removal of floating debris from stormwater run-off. 05: Aquacell Core Inf. Designed for use in car washes and other cleaning facilities, the wastewater passes through our Kingspan Klargester washdown and silt traps where it is retained long enough to allow solids. In Stock. The temperature change causes the water vapour to condense back into a liquid, which is then collected in the condensate trap. SINGLE STACK SYSTEM • From the figure it is clear that only single pipe acts as soil pipe waste pipe and ventilation pipe. POA. Apr 20, 2023 - Explore David Smedley's board "Silt trap" on Pinterest. Silt Trap Round With Lid With Bend & Lid Cast Iron. The modular design allows for the fastest installation time and a flexible tank design. Colour . 510mm depth. Silt trap Silt trap To isolate grit, silt or leaves in surface water before it enters rainwater drainage system. G, KW, IV, AB, PH, DD, PA, FK, KY, EH, KA, ML, TD and DG. This cookie is set by GDPR Cookie Consent plugin. shop now. 6LB300. We offer a choice of three sizes - Mini, Basic and. Our Recommended Sediment Filter for Well Water in 2021. New Zealand’s original height adjustable silt pits are faster to install than traditional pits and require no pit adjustment call-backs. PO Box 104298 Lincoln North, Auckland 0654 +64 (09) 837 2725 orders@aqualine. Silt traps are usually installed in a kitchen floor or an area where frequent wash downs are required. Viking Plastics has 50 years of expertise as a specialist in plastic fabrication. Designed to hold a small amount of water which then works to prevent harmful sewer gases and bacteria entering a room or building, while also allowing wastes to pass through. Washdown Separators. Designed to separate debris and any unwanted particles entering and blocking the downstream pipework, this silt trap can be used upstream of small sized attenuation, retention and infiltration systems for domestic driveways and gardens. This trap has a small removable straining bucket and perforated grate. Soil pipes, also known as soil vent pipes, are used to transport wastewater and sewage into the sewer. co. Black Basic Silt Trap manufactured by Polypipe Building Products as part of the Civils range - Silt Traps and Flow Control Features & Benefits: The tried and tested Polystorm geocellular range is designed to provide retention, attenuation or infiltration at a variety of depths. Different sizes of silt traps are appropriate for different soakaway systems depending on the size of the area covered and the expected amount of debris. 110mm Rectangular Hopper Head. approved - Oxfordshire County Council Online e-Planning System. search. All spigots have blind ends, that can be cut off on site if required. Pit with cover Silt Pit showing removable basket. An optional auto-flush valve keeps the filter mesh screen clean, or it can be manually flushed by opening the bottom flush valve. Step 3 - Check inside the gully. Diameter . This pit has a removable grate and straining bucket. Silt and sludge removal. 2. Showing 1 to 4 of 4 (1 Pages) Drainage Silt Traps. 1. Catchpits / Silt Traps & Fabrications. We provide world class customised plastic fabricated products for all types of specialised applications. Highly Respected. A silt trap is a designated area where water that is contaminated with suspended sediment can settle to the bottom of the trap until it can be removed. Silt traps function by allowing dirty water to enter at a higher level and clean water to exit at a lower level, leaving dirt and silt behind in a removable bucket. Sediment traps are considered temporary structures and often placed at the site on an as needed basis by field personnel. Use the brush to clean the inside of the bent pipe. Compare. A silt trap is a method of preventing silt from entering and damaging a soakaway, attenuation or sewer system. 5m deep and comes with 3x 160mm connections. Sediment trap, dirt pocket or drip leg. . Add to Basket. SP Soil pipe8. Silt Traps for wash bays A Fox Model PT600 silt trap is ideal for use in Roofed Wash Bays or Unroofed car park or driveway areas where silt and debris cannot be controlled. Buy Now Question. AquaCell Domestic Silt Trap BN 250x750. Duration. How do silt traps work? Step 1. cookielawinfo-checkbox-analytics. Everhard Industries SQID 450 - To Suit Series 450 Pit. ACO's range of elegant and modern 'Complete the Look' gratings are available to provide choice and style. For each silt trap facility location illustrated, different cross-section design types were implemented. Pricing group 1 - Key. Silt traps are installed upstream of an attenuation or soakaway system, or any drainage system, to prevent silt, sediment, debris and other unwanted material from. discharge into the sewer system. The Silt Trap comes in a range of sizes and models. Shop our wide range of drainage at warehouse prices from quality brands. , 2005). We provide world class customised plastic fabricated products for all types of specialised applications. A well professional can put a camera down your well and inspect the well. Sorting out the front driveway and rainwater drainage as we start to wrap things up on this phase of The Home Extension! Auckland. For advice on selecting the right product for your project contact our expert team at: klargester-web@kingspan. (1) £18. 5011479231760. Please contact the Sales team on 01773 767611 for. The gully traps also intercept silt and debris from a roof or a hard standing preventing it from entering the main. Well Pump Is Too Low. area of domestic sewage, surface water runoff from roofs and paved areas within the curtilage of premises, and trade effluent. Sediment traps and basins are settling ponds formed by excavation and/or an embankment that intercept and retain sediment-laden runoff from a construction site for a sufficient period of time to allow the majority of sediment to settle out prior to being released from the site. inlet - to suit 110 en1401 pipeSilt Traps & Catchpits; Valves; SEWAGE TREATMENT. 5011479194195. g. AQA. 75mm Water Seal. Removal mechanisms include ponding the runoff to allow for settling, and physically filtering sediment as it passes through a sediment barrier (e. It comes complete with. Silt trap Item W D H Weight Single 3 way 738 670 870 655 Double 1320 670 870 1168 * Manufactured in Christchurch for Canterbury Region. A well pump should be set at about 10 to 20 ft from the bottom of the well. Geotextile silt fences. PP. Simply give us a call on 1300 885 364 or email sales@jaybro. Wavin AquaCell domestic silt trap 250mm depth 750mmFeatures & benefits. Pricing group 1 - Key. It is during this time period, the sediments tend to settle in the trap. Domestic silt trap extension piece, depth 500 mm. Order your silt traps here: Our robust, chemically resistant Polypropylene and Polyethylene silt traps are available in a in a range of depths and pipe sizes for your soakaway and attenuation requirements. In setup #1. 1. 25m Depth :. View More. CAD - Silt Trap 6LB600 + Extension Option, A15 & D400 Loading. Choose an option 160mm Pipework (standard) Clear. Designed for the catchment of silt & solids in stormwater systems, the chambers are water tested and supplied with seals as a fully water tight chamber. For more information or an obligation free quote, call Viking Plastics on 03 9587 2297 or email info@vikingplastics. Our range include bottle gullies, gully traps and square hoppers. Straw Bales. Select Country My PortalFind the designer floor trap which suites your residential/commercial floor at Mandi BP. Technical drawing of grease trap can be seen on Figure 2 and removal calculation showed on. Its main job is to prevent any silt, soil, sediment, metals or pesticides (everything unwanted) from entering your water storage system. Benefits. 7. Pipe outlet sediment traps may be interchangeable in the field with stone outlet or riprap sediment traps provided that these sediment traps are constructed in accordance with the detail and specifications for that trap. Culinary center wastewater contributed to the addition of organic content in domestic wastewater, as. Ph: +613 9587 2297 Fax: +613 9587 1172 [email protected]The size of the separator is increased in order to retain the possible loss of the contents of one compartment of a road tanker, which may be up to 7,600 litres. These are pipe extensions that aim gas flow straight down. 8. Silt Traps 36 Ancillaries 37-38 Spares 39 Contents AquaCell Systems. 820 Drain union - 0056 . The option-2 silt trap is a rectangular shape with an approximate area of 500 × 500 m 2 which is positioned right across the flow of Haldi. Here’s a video that teaches you how to make six classic traps: the Ojibway bird snare, the Paiute deadfall, the figure 4 deadfall, the wynn double-wishbone deadfall, the T-bar snare and the fishing gorge hooks spring pole. Excavated tanks (farm dams) provide effective water storage wherever surface water run-off can be harvested for livestock, crop spraying, irrigation and domestic use on rural properties. The Rewatec range of silt traps are available with different grades of grated covers to allow. VAT. The Silt Guard SS300110 model is ideal for installation upstream of smaller volume, cellular/crate – attenuation systems, significantly improving the water quality going into the syste Intesio Infiltration and Attenuation Systems Product and. Easy to install (instructions provided), it is suitable for new and existing waste water. Sand and silt traps should be installed prior to any stormwater discharge entering an infiltration or attenuation tank. Permanent Redirect. Viking Plastics provide delivery and pick up and arrange pump out if required. . Duration. Drainage Interceptor Traps . The benefits of the silt fence are increasingly becoming recognised in Britain: The Environment Agency/SEPA Pollution Prevention Guidelines (PPG5) now recommend the use of silt fences to reduce. This cookie is set by GDPR Cookie Consent plugin. The inlet to the dam is made of 3 holes. Make sure the other end of the garden hose is above a drain or bucket, ready to flush. We offer an extensive portfolio of Attenuation & Stormwater Management solutions, ideal for surface water drainage applications. Also we exlpain how the silt trap works and how to maintain it. "Silt Guard 300 Series Silt Trap for 110mm Pipework with Filter Bucket and Access Cover","handle":"silt. 5 tonne), medium (5 tonne) or heavy duty (8 tonne) load ratings. Ensure you trap harmful silt through settlement and filtration before it leaves the site with a Sedifence. The Silt Guard 300 Series is designed for installation upstream of medium to large volume, cellular/crate-attenuation systems, ponds, swales and irrigation systems. £15. FREE delivery Apr 18 - 20 . Silt traps filter out physical sediment to prevent sediment buildup in the drywell. Domestic Grease Trap; Large Domestic Grease Trap; Commercial Grease Separator; Distribution Sampling Chamber; Storage Tanks. 1). CAD - Silt Trap 6LB600 + Extension Option, A15 & D400 Loading Download DWG CAD FILE ASSET_TYPE_CAD_DRAWING_WEBSITE CAD - Typical Offline Detail. JFC CorriPipe™ is a twinwall drainage pipe manufactured from recycled HDPE. Unit 200l 6lb200. Our robust, chemically resistant Polypropylene and Polyethylene silt traps are available in a in a range of depths and pipe sizes for your soakaway and attenuation requirements. The typical thickness of the gravel pack is 4 to 6 inches. Wrap and overlap the geotextile covering the entire AquaCell structure, to protect the geomembrane. trap after each rainfall event for damage from erosion and to ensure that the trap is draining properly. 24632. The primary difference between the different types of silt traps is the size of the area covered by your system. 26: Aquacell Extension For 6lb300 Bn 250x500 6lb301 : Aquacell extension for 6lb300 bn 250x500. 42. Drywells require optimal conditions for onsite infiltration. To be positioned upstream of attenuation or soakaway systems, such as RAINBOX. The high capacity system can be used for silt management and also as an outlet for the drainage system. 8 Rainwater Diversion Valve 2. 2. Silt traps are usually supplied with a ‘disconnector trap’. A masonry chamber works like a grit chamber that shares the silt, sand, etc. These can also be used for finer filtration of. JFC 110mm (4″) Twinwall pipe far exceeds this guideline with a maximum flow rate of 0. 8. SUMPS & TRAPS 2. The Gully Guard™ system is an environmentally friendly silt trap; an inexpensive, low maintenance and reusable engineered solution that assists in the prevention of blocked gullies, surface flooding and watercourse contamination due to silting and debris build-up. 00. Sediments can remain suspended for a very long time. RELN Uni-Pit Vortex™ Series Range Review. m. TAblE 1 Product range Product Code Description Mass (kg) IC3000600 Spun Concrete Silt Trap 53 CI325G Cast Iron Grate 4 16 300 ID 630 360 OD We are the supply partner o choice or ne ealand’s civil construction industry specialising in ater and inrastructure based solutions. Domestic Silt Trap: 6LB300: Silt Trap: 6LB600: Extension Kit: 6SC205: Twinwall S/S Adaptor: 6TW141: UltraRib S/S Adaptor: 6UR141: SuperSleve Adaptor 150mm: SA15/2: SuperSleve Adaptor 150mm (for use with 6LB104) TA/2: SuperSleve Adaptor 225mm (for use with 6LB106) TA/4: CALL US NOW ON 01635 524224 FOR PRICESSilt (sediment) provides a significant source of phosphorus. 16. Mini access chamber are supplied for depths of up to 600mm and a 450mm dia Large inspection chamber for depths of up to 3000mm. If your water well begins to pump sand or sediment, it is often best to contact your well driller or local well professional to discuss the problem and possible ways to fix it. Silt traps or catch pits are typically used upstream of soakaway and attenuation systems to filter solids and prevent them from entering down-stream drainage and storm water storage systems. VAT. Catalog code Wavin. Categories: Catchpits, Drainage Tags: sump, sumps. Main Material . In order to prevent silt from entering the tank, clogging inlet pipework and reducing storage capacity, it is recommended that the Domestic Silt Trap (6LB300) or the standard Silt Trap (6LB600) is installed prior to the inlet pipework. Diameter . By allowing the fat, grease and oil (FOG) to cool, a grease trap is able to separate the different layers of wastes with water. We have also extended our expertise to offer Fat, Oil, & Grease. Horizontal foul air trap - 01684 . Research in NZ has shown sediment traps to be. SecuraGold™ sizes. The design drawings of the cross-sections are shown in Table 4. RELN Uni-Pit Vortex™ Series 300 Product Review. For many pipe widths, custom made caps are available to use as bottoms, or flat pieces of PVC can be cut and glued to the bottom using PVC cement. Wavin AquaCell domestic silt trap 250mm depth 750mm Catalog code: 6LB300 Product specifications Identification specifications -Catalog code Wavin 6LB300 EAN Number 5011479231760 SAP number 000000000004040293 General specifications + Logistic specifications. PO Box 104298 Lincoln North, Auckland 0654 +64 (09) 837 2725 orders@aqualine. Price. Home / Marker Posts. 00. Viking Plastics Engineering Pty Ltd. All models are robust, lightweight and easy to install. Above Ground Settling Tank (Plaster Trap) Fabricated from PVC or 6mm polypropylene for above ground installations. Bucket, for 6LB300 Domestic Silt Trap 200x210mm: Black: 6LB600: Trap, AquaCell Silt 500x1250mm: Black Polypropylene: 6LB622: Trap, AquaCell Silt c/w 225mm Inlet. The vinegar will start to bubble and react with the baking soda as soon as they’re together. Our 140 litre trade-waste Arrestors are designed for connection to standard 100mm drains and has three removable concrete baffles for easy cleaning, and to permit simple replacement in case chemicals in the wastewater. , silt fence, rock/soil berm, gravel. Soil pipes. 4. A manhole cover is not supplied with this product. The lid is easily removed to gain access to the grit collection bucket. The standard cost of delivery* will apply to this product, however offloading is the responsibility of the customer. Silt traps are ideally suited to wash. High and Medium Pressure Steam Trap Discharge Into Pumped Condensate Return Line: PDF. Food waste disposers installed with a set of restaurant, commercial, or industrial sinks shall be connected to a separate trap. We offer a range of silt traps, flow control units and adaptors are also available to complete the system. 600mm diameter catch pit/silt trap. Thus sediment traps cannot be expected to give net rates of sedimentation, but rather give an es- timate of the amount of material poten- tially available to settle on a particular area. 00 ex. A silt trap is a basin device that is set upstream of a soakaway crate and its purpose is to prevent any kind of silt, soil, sediment, metals or pesticides from entering your water storage system by containing water in the trap. In order to prevent silt from entering the tank, clogging inlet pipework and reducing storage capacity, it is recommended that the Domestic Silt Trap (6LB300) or the standard Silt Trap (6LB600) is installed prior to the inlet pipework –. Food waste disposers installed with a set of restaurant, commercial, or industrial sinks shall be connected to a separate trap. They may be constructed as smaller sediment traps – serving disturbed. Some drywell systems are more complex and involve a silt trap (also known as a catch basin). Silt traps function by allowing dirty water to enter at a higher level and clean water to exit at a lower level, leaving dirt and silt behind in a removable bucket. Patio drainage. 5 metres per second is needed to ensure drainage pipe will clear itself of silt. 81 £196. In a condensing boiler, this water vapour is instead captured and used to preheat cold water entering the system. One of the UK's most trusted and leading names in plastic drainage systems. Not more than one trap shall be permitted on a trap arm. 6. Certificate Wavin AquaCell Plus-R data sheet. Aquacell Silt Trap Bk 500x1250 6lb600 £1226. For use with the ACO MultiDrain PPD channel drainage system. <p>AquaCell geocellular systems are a BBA approved, modular technique for the effective management of excessive rainfall. 05 £331. The work took less than a month to complete and. The Silt Sentinel Range has become one, if not the leading specified and used range of Silt Traps and Silt Management Products in the Irish drainage market. bizPOA. Wavin AquaCell domestic silt trap extension piece depth 500mm 6LB301 Wavin AquaCell flange adaptor to UltraRib 150mm 6LB104 Wavin AquaCell flange adaptor to UltraRib 225mm. There are, of course, many factors that will effect the build-up of oil and silt, for instance, there will be a seasonal variance, also if a site has a silt trap as a part of the drainage solution. 300mm inspection chambers should be installed at a maximum invert depth of 600mm. There are many different types of grease traps and interceptors and may work in slightly different ways, but the end result is always the same. Fabricated from 6mm PVC and/or polypropylene (PP) for below ground installationSilt (sediment) provides a significant source of phosphorus. POA. Dux AdjustaPit™ 350mm – Round Grate Only - DA350GR. Corriduct – General Purpose Ducting; ENAT. 05 UK and Worldwide delivery. [6] 3. To be positioned upstream of attenuation or soakaway systems, such as RAINBOX. 1mm. Wild pigs are mid-sized hoofed mammals with a long, pointed head, short legs and a stocky build. Sumps & Traps. Services include on-site installation, commissioning and servicing of all products supplied. The Rusco 1-1/2-250-F is an elegant-looking spin-down sediment filter perfect for households with well water. Oil/fat naturally rise to the surface of the water and is. They are available in few quality brands such as Atget/ Johnson Suisse & our. Cost-effective. 16. € 999. Max burial depth @ 1m. ETST 100 & 200 silt traps will Improve water quality downstream of the unit by removing silts, debris, and litter Delivered ready to install, reducing installation time and costs Quick and simple to install, is lightweight and can be lifted and installed by a single person There are two models in the range – 100 litre and 200 litre. Silt Fences and Super Silt Fences are considered a temporary measure for trapping sediment-laden runoff from small catchments of usually less than 0. Wavin | WavinThe ACO Universal Gully provides fast and simple connection between any channel up to 200mm bore width in the ACO channel drainage range. Designed to maximise rainwater capture and reduce mains water usage. CAD - Silt Trap 6LB600 + Extension Option, A15 & D400 Loading Download DWG CAD FILE ASSET_TYPE_CAD_DRAWING_WEBSITE CAD - Typical Offline Detail. Colour . Silt bucket is lined with white perforated sheet to collect silt particles. Silt traps or catch pits are typically used upstream of soakaway and attenuation systems to filter solids and prevent them from entering down-stream drainage and storm water storage systems. Unit 6lb025 £141. CAD - Silt Trap 6LB600 + Extension Option, A15 & D400 Loading Download DWG CAD FILE Drainage Interceptor Traps . of water for stock water, domestic supply and irrigation. Sand and larger silt particles will settle out reasonably quickly, however clay and fine silt will take much longer (a number of weeks). Therefore, the gas appliance does not have any sediment entering the gas chamber. The source for all types of gravity drainage, sewer installation and pressure pipe systems in any private or public development. 3kg weight. Our standard 320mm X 580mm mini silt trap is for 110mm underground surface water drainage systems. Features. Drywells require optimal conditions for onsite infiltration. Main Material . These are pipe extensions that aim gas flow straight down. 5 tonnes. That’s why silt traps come in a range of sizes, so make sure you choose one that is suitable for your needs. A soakaway must be 2. 8. An optional auto-flush valve keeps the filter mesh screen clean, or it can be manually flushed by opening the bottom flush valve. Viking Plastics domestic grease traps are available for above ground (under the sink) and below ground installations. Click the image above to learn more about patio drainage options and tips from ACO. Wavin AquaCell domestic silt trap extension piece depth 500mm 6LB301 Wavin AquaCell flange adaptor to UltraRib 150mm 6LB104 Wavin AquaCell flange adaptor to UltraRib 225mm. This will reduce the quantity of silt entering into the pond in the first placeContact supplier. As the water cools, suspended fats, oil and. Operation. PO Box 104298 Lincoln North, Auckland 0654 +64 (09) 837 2725 [email protected] boxes. 3 Technical design criteria 3. . The range of underground drainage supplies includes a variety of items specifically designed for sub-terrain drainage installation. DWG - 2 MB. 3 Electrical Pits 2. Silt traps. The Rewatec FST range of silt traps are ideal for easy removal of silt either manually or by a waste disposal contractor. Attach a garden hose to the drain valve typically found on the side of the water heater tank. Skip to content Telephone : 061 970197Perimeter controls for disturbed areas are temporary sediment barriers that intercept and remove soil and debris from sheet flow runoff on construction sites. Our. PSMST110 - Polypipe Polystorm Mini Silt Trap. How do silt traps work? Step 1. As each individual SuDS system is different, they are individually fabricated to take into account water flow rates and ground conditions that differ from site to site. Pricing group 1 - Key. AquaCell Silt Trap BK 500x1250. We commonly work. Designed to intercept silt and solids upstream of Rainwater Harvesting and Flood Management systems the ETSG range is equally at home in vehicle wash applications. The road gully is an important component of your surface water drainage system that can prevent any sediments from entering the system. A silt trap is a basin device that is set upstream of a soakaway crate and its purpose is to prevent any kind of silt, soil, sediment, metals or pesticides from entering your water storage system by containing water in the trap for some time and allowing these unwanted materials to settle to the bottom of the bucket and separate from the water. Auckland. SEPTIC TANKS. Wavin Part number 6LB300. 77 inc. $264. Sri Lanka is an oceanic tropical island in the Indian sub-continent and located at 5°54′–9°52′N 79°39′–81°53′E (Fig. Still, a trap’s performance Aquacell domestic silt trap bn 250x750 Wavin : £331. Add to Cart. Perforated Twinwall CorriPipe™ Ducting. Infiltration solutions store and slowly discharge excess water into the surrounding soil. POA. Silt Trap: 1250: 500: 500: 254571: PP: Add to my list. 300mm diameter, factory built unit, delivered to site ready to install. Storm Drain™ Garage Pack - 3. 1. We commonly work with small and medium size businesses, councils, educational institutions and large corporate or industrial organisations. Silt Trap 1150 litres. Sediment traps should be constructed at a low point, or at the point where concentrated flows leave the site. A silt trapis a method of preventing silt from entering and damaging a soakaway, attenuation or sewer system. The tried and tested Polystorm geocellular range is designed to provide surface water retention, surface water attenuation or surface water infiltration at a variety of depths. A domestic well can cost between $5,000 and $10,000. Rain Water Harvesting System. VAT. non-biodegradable contaminants. This pipe extension usually is at least 3 inches long and is intended to catch any water or foreign material that may be in the gas before the material gets. (Left) Map showing the run-off in an arable fields and where silt traps were constructed. Description. Silt-traps Mudtanks Freephone 0800 502 112 sanitation design guide v . It is installed to take wastewater from upper floor toilets, baths and sinks into the underground drainage. 1. Oil separators are designed to prevent oil and other hydrocarbons from entering the drainage system. and fi lters out formational materials such as sand and silt from entering the well through the screens. Catchpits / Silt Traps & Fabrications; Pipe Jointing Lubricant; Road Gullies; Land Drainage. 15 Rain Fall mm STAGE 1 - Completing Earthworks Catchment Area Total Catchment Area = ha Soil type : =m2Clay/Loam Therefore design wet sediment basin. 05 £331. Add to my list. Choosing the best way to manage sediment particles in well water is in the hands of the family. Featuring a robust, impact resistant, rota moulded base with four moulded pipe spigots that accommodate 110mm EN 1401 pipe fittings. Add to wishlist Add to Compare Email. </p><p><br></p><p>There are three types of AquaCell unit. Contain waste in covered bins or traps made from geotextile. A sump can also be an infiltration basin used to manage surface runoff water and recharge underground aquifers. A strong and durable alternative to standard plastic silt traps. Ref. Before entering a drainage system, contaminated water is directed to the silt trap. com or call us on +44 (0) 1296 633033Leave any remaining water in the tank to cool. Or RegisterOffering expert advice and a comprehensive range of fittings and accessories, JFC is the brand of choice for leading contractors and project managers. . 60 days free credit available. Compare. JFC GT01 – Domestic Grease Trap Chamber – 40 litres. Hair is course and denser than a domestic pig, with long bristles. Cast iron grates are also available and 50, 65 and 100mm holes can be drilled to suit pipework required. Polypropylene Construction. Registration number. : Job Title : Made by NAS Date Remark SEDIMENT TRAP DESIGN 1 Sizing a Wet Sediment Trap Limitation in design Table 12. Most are black. B4750 – 450mm x 750mm. Trade Sign in or apply for trade prices. Minimise the risk of flood damage by managing peaks in rainfall. Silt Trap.