The range of underground drainage supplies includes a variety of items specifically designed for sub-terrain drainage installation. 1. This is how silt traps work: slow the influent. The standard cost of delivery* is included with this product, however offloading is the responsibility of the customer. VAT | € 1,228. The soakaway must not be in an area of unstable ground or where the lowest point of the soakaway meets the water table at any point of the year. Well, yes and no. Sediment control is a major factor at construction sites which requires the use of effective sediment traps. Select pipe diameter from the following. . Pricing group 1 - Key. 00. An optional auto-flush valve keeps the filter mesh screen clean, or it can be manually flushed by opening the bottom flush valve. 7. Quantity. The uncontrolled build-up of coarse sand and silt particles in your rainwater management system can soon reduce the overall efficiency of your system. In the worst cases significant surface flooding can. Silt Management; Access Chambers and Manholes; Biological Grease Treatment. The high capacity system can be used for silt management and also as an outlet for the drainage system. Perforated land drain is designed to collect surface water and commonly used in agricultural, domestic, commercial and industrial areas. What is silt trap and how does it work? A silt trap is an area, like a shallow trench, where run-off from fields or tracks is detained. • This trap is provided to remove silt from the drain before discharging into the house drainage system. Have questions? Call 061 970197. The main outlet has the option of a 150mm twinwall pipe connection. 80075 Series 450D Stormwater Pit with Galvanised Grate 80073 Series 450S Stormwater Pit with Galvanised Grate 21041 Series 450 Galvanised Steel Grate 97848 Series 450. discharge into the sewer system. Silt bucket is lined with white perforated sheet to collect silt particles. 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. Wavin AquaCell domestic silt trap bucket Catalog code: 6LB302 Product specifications Identification specifications -Catalog code Wavin 6LB302 EAN Number 5011479231784 SAP number 000000000004040291 General specifications + Logistic specifications. Aquacell Domestic Silt Trap Bn 250x750 6lb300 £331. The road gully is renowned for its dual combination outlet, creating a trap to prevent any unpleasant smells. The basic idea of a gully is that you have a trapped receptacle at surface level that waste or storm water can pass through easily but gases, odours and rodents from the drainage and sewer system can not pass back the other way. Yard Gully Set with Silt Bucket and Ductile Iron Grating - 12. 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. Our range include bottle gullies, gully traps and square hoppers. Choice of household water treatment technology should be based on efficiency of removing contaminants present in the water. 89 £122. We provide world class customised plastic fabricated products for all types of specialised applications. Storm Drain™ Garage Pack - 3. cookielawinfo-checkbox-analytics. For small, domestic soakaways, the following method can be used or adapted to suit the site requirements. Select Country My PortalWavin AquaCell Domestic Silt Trap Extension Piece Depth 500mm. 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 –. The top of the lid is at floor level. Pit with cover Silt Pit showing removable basket. Our traps have been designed to filter and collect silt particles that discharge from laboratory or commercial wastes. A sump can also be an infiltration basin used to manage surface runoff water and recharge underground aquifers. 05 £331. And many other chambers with restricted access or confined spaces. 7. We are delighted to introduce our new and innovative range of Marker Posts. 3 out of 5 stars 7. 3 Anaerobic digesterAquacell Silt Trap Bk 500x1250 6lb600 £1226. Ref. com. Brad Costin from Victoria's Department of Economic Development. Connecto™. CAD - Silt Trap 6LB600 + Extension Option, A15 & D400 Loading Download DWG CAD FILE ASSET_TYPE_CAD_DRAWING_WEBSITE CAD - Typical Offline Detail. Fitted with 100mm inlet, outlet and vent plain pipe fittings and threaded sampling and drain nipples. Land Drainage Silt Traps & Catch Pits . As rainwater enters the unit, the silt and other ground solids held in the water, fall into the bucket. Showing 1 to 5 of 5 (1 Pages) Over the last 10 years there has been a huge increase in the installation of modular/crate type attenuation and storage systems and even though the design of these systems has somewhat developed, there is still ‘no’ preventable. Wavin AquaCell domestic silt trap 250mm depth 750mm 6LB300 Wavin AquaCell domestic silt trap bucket 6LB302 Wavin AquaCell domestic silt trap extension piece depth 500mm 6LB301 Wavin AquaCell silt trap with 160mm OsmaDrain inlet 6LB600 Wavin AquaCell silt trap with 225mm TwinWall inlet 6LB622 Wavin Sewer Bottle Gully Riser 110mm 4D916 Some drywell systems are more complex and involve a silt trap (also known as a catch basin). Oil separators are designed to prevent oil and other hydrocarbons from entering the drainage system. Any build-up of silt at the base of the soakaway can be removed. Services include on-site installation, commissioning and servicing of all products supplied. Features & Benefits: Silt Guard 300mm Silt Trap for 110mm Pipework with Filter Basket and Access Cover. This Silt Trap protects the storm water system and the surrounding environment from contaminants such as silt and other debris that can accumulate and be washed off the hardstand and car park areas. VAT. 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. Connecto™. A catchpit (also known as a silt trap or interceptor trap) is an empty chamber installed along a drainage system. Rain Water Gullies and Drains. 8. Aquacell Silt Trap Bk 500x1250 6lb600 £1226. what is a silt trap chamber - silt chamber and sediment control is a key element in our stormwater management strategy. A silt pit is placed in the floor of a wash-down area for the collection of silt and other solid matter that may be flushed from the wash-down area. This innovative product operates on the principal of gravity separation. New Zealand’s original height adjustable silt pits are faster to install than traditional pits and require no pit adjustment call-backs. approved - Oxfordshire County Council Online e-Planning System. Water wells are expensive. CAD Drawing CAD - Typical Offline Detail. Used to collect the debris jetted back to the chamber when cleaning drains and sewers. (0) $826 . these include silt trap lids, silt trap suit pvc, silt trap suit hdpe + vinyl floor. 19. Dux AdjustaPit™ 350mm – Square Grate Only - DA350GS. PO Box 104298 Lincoln North, Auckland 0654 +64 (09) 837 2725 orders@aqualine. Connecto Trade®. 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. Easy to install (instructions provided), it is suitable for new and existing waste water. Each farmer contributed $5 per acre of land they were farming, to assist with the hiring of 38 men to clear the canal of silt and rocks. -SEDIMENT TRAP-Catchment 20 ha Member/Location : Drg. , Type B 11 Temporary Rock Sediment Dam, Type A 12 Temporary Rock Sediment Dam, Type B 13 Rock Pipe Inlet Sediment Trap, Type A 14 Rock Pipe Inlet Sediment Trap, Type B 15 Skimmer Basin 16 Stilling Basin 17. A grease trap (also known as a grease interceptor, grease arrestor or food and oil interceptor) is a holding tank with a number of baffles. Step 3: The shower trap should be ready for removal. 7 Winston Place Henderson, 0610. pitches and sports fields will have some kind of existing drainage and these systems will be prone to silting like any domestic garden drainage system, we do however find that the years of maintenance and heavy rolling of these pitches can compact the top-soil to the point where the storm water can. Colour . Featuring a robust, impact resistant, rota moulded base, the silt sentinel 300 series comes with four moulded pipe spigots that accommodate 110mm EN 1401 pipe fittings. Add to my list. JFC 110mm (4″) Twinwall pipe far exceeds this guideline with a maximum flow rate of 0. When field run-off reaches the silt. 160/110mm EN 1401 Connections. Step 3 - Check inside the gully. Or RegisterOffering expert advice and a comprehensive range of fittings and accessories, JFC is the brand of choice for leading contractors and project managers. - i4info. Marley 110mm x 15m Black with Yellow Stripe Drainflo with Filtersock Drainage Pipe. Sediments can remain suspended for a very long time. How to install a soakaway with an in line silt trap . 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 velocity around the silt trap is comparatively higher in magnitude to the velocity inside the trap during high and low tides. Best Seller. See moreSilt traps Wavin offers silt traps as part of its overall stormwater management system design. Technical drawing of grease trap can be seen on Figure 2 and removal calculation showed on. Oil / Water Separator. Utilising a twin extrusion process, the two layers are simultaneously extruded one inside the other and heat welded together in one continuous step. Main Material . 6. 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. As the silt trap fills up with water, silt settles at the. Gully Traps. There are many different types of sediment traps ranging from silt fences to rock-filled ditches to berm and sump combinations, all of which can play an important role in preventing potential sediment runoff. 500. 44. 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. Main Material . Grease Traps. PAGE 1 OF 3. Domestic machines (equal to or less than 10Kg in size per machine) • For one or two domestic machines, each machine is fitted with a lint trap. Apr 20, 2023 - Explore David Smedley's board "Silt trap" on Pinterest. The lid is easily removed to gain access to the grit collection bucket. This innovative product operates on the principal of gravity separation. 29 $6. Colour . Find Silt Trap stock images in HD and millions of other royalty-free stock photos, 3D objects, illustrations and vectors in the Shutterstock. ECOTEC offers best in class products such as grease trap management systems, silt interceptors, access & inspection chambers as well as biological treatments, odour control products and accessories. RELN Uni-Pit Vortex™ Series 450 Product Review. 8 Splitter Valve 2. The details of the silt trap or silt chamber are shown in the picture. RELN Uni-Pit Vortex™ Series 300 Product Review. Wrap and overlap the geotextile covering the entire AquaCell structure, to protect the geomembrane. Regular wind or weed matting cloth is not suitable. Diameter . Well-designed and constructed dams are farm assets, safe. 5011479231760. 12. The domestic grease trap minimises pipe blockages by reducing the amount of grease (and other fat/oil based substances) entering the drainage system. sediment can settle to the bottom of the trap until it can be removed. 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. 00. area of domestic sewage, surface water runoff from roofs and paved areas within the curtilage of premises, and trade effluent. We can help you design the correct water management system to comply with relevant drainage regulations and offer a sustainable drainage system (SuDS), that will suit your specific development. </p><p><br></p><p>There are three types of AquaCell unit. this material will settle. Therefore, the gas appliance does not have any sediment entering the gas chamber. The grease trap is installed in-line between the kitchen sink and the sewer or septic tank. € 999. Well water first flows through a filter strainer removing sand and large sediment common with silt, dirt, and mud. trap after each rainfall event for damage from erosion and to ensure that the trap is draining properly. £15. An irrigation well can cost in excess of $40, 000. Dux AdjustaPit™ 350mm – Square Pit & Grate - DA350S. 700/750mm or 1260/1210 Invert. Silt traps are usually installed in a kitchen floor or an area where frequent wash downs are required. 300mm inspection chambers should be installed at a maximum invert depth of 600mm. The temperature change causes the water vapour to condense back into a liquid, which is then collected in the condensate trap. 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. To minimise the risk of silt pollution occurring, you should use methods that, where possible, do not contaminate surface water. Add to cart. Silt Traps 36 Ancillaries 37-38 Spares 39 Contents AquaCell Systems. Use the brush to clean the inside of the bent pipe. Removal mechanisms include ponding the runoff to allow for settling, and physically filtering sediment as it passes through a sediment barrier (e. Hair is course and denser than a domestic pig, with long bristles. A strong and durable alternative to standard plastic silt traps. Silt traps. trap after each rainfall event for damage from erosion and to ensure that the trap is draining properly. Catch Pits. nzAll units are supplied with circular, 35KN (A15) loading access cover, which will take a light traffic loading, such as domestic driveways and gardens, but not in areas that will potentially experience traffic that is over 2. Ensuring that foul odours and harmful gases cannot return into the bathroom or kitchen by passing the waste into the drainage system. Price. (0) $329. 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. £236. Silt is somewhere between the size of sand and clay, and is an important component in the sedimentary dynamics of rivers. auWe offer an extensive range of Silt Traps and Catchpits for surface & storm water drainage. Traps can be any size, but the ratio of Height to Weight should be between 2:1 to 3:1 to avoidLeave any remaining water in the tank to cool. Permanent Redirect. Located upstream of retention, attenuation and infiltration drainage systems, RIDGISTORMSeparate Silt Traps capture and retain silt and. Straw bales are used to intercept and detain small amounts of sediment from disturbed areas of limited extent to prevent sediment from leaving the site. Well Pump Is Too Low. View Products. The Rewatec range of silt traps are available with different grades of grated covers to allow. Waste water enters the trap from sourse (eg a kitchen sink). Manually Download. VAT. 06 £196. 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. 70 inc VAT, Each. Once the water velocity reduces to a certain level then the fine sediment in the water column drops out to the bottom of the sediment trap. 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. 8. Please like and subscribe id appreciate i. Compare. m. 06th November 2020. This section shall not apply to fixtures with integral traps. 00 ex. A well pump should be set at about 10 to 20 ft from the bottom of the well. A well professional can put a camera down your well and inspect the well. As the silt trap fills up with water, silt settles at the bottom of the tank, below the invert pipe. 4. This YouTuber explains them all clearly, making the ideas easy to learn and then replicate yourself. Research in NZ has shown sediment traps to be. FOG float to the top of the water are then trapped by the grease trap. Patio drainage. 99: Wavin Aquacell Eco Inf. 81 £196. - i4info. Oil/fat naturally rise to the surface of the water and is. 66. JFC GT01-L – Domestic Grease Trap Cast Iron Cover Cast iron, pedestrian duty cover for use with the JFC GT01 Domestic Grease Trap. We offer an extensive range of Silt Traps and Catchpits for surface & storm water drainage. 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. Under normal operating conditions, the level of oil and silt in many separators does not build up sufficiently to require a complete cleanse. It is available in the MGT series and the MGTS Series and sizing ranges from 550 litres to 5000litres. We are AllTrap Engineering. Silt bucket included. To be positioned upstream of attenuation or soakaway systems, such as RAINBOX. Soil pipes. Diameter . Catchpits / Silt Traps & Fabrications; Pipe Jointing Lubricant; Road Gullies; Land Drainage. 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. For use with the ACO MultiDrain PPD channel drainage system. AquaCell Eco Domestic Soakaway. 1. HDPE Silt Trap complete with Increment, Stainless Steel Lid and Bucket with 1. The Silt Guard 300 Series is designed for installation upstream of medium to large volume, cellular/crate-attenuation systems, ponds, swales and irrigation systems. Main Material . Certificate Wavin AquaCell Plus-R data sheet. Suction trap. € 999. Shaft height can. Add to Cart. 300mm diameter, factory built unit, delivered to site ready to install. 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. Size 450mm Diameter x 900mm. ETSG 3 - Silt Trap - Drainage area 16500 sq. 75: 6lb600 Wavin 500mm Silt Trap 1. 143 Woodlands Drive Braeside, Victoria 3195. 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. A domestic grease trap collects greasy water. 100% of the liquid, up to the unit’s designated flow passes through both chambers of the unit. Permanent Redirect. A soakaway must be 2. The market leading silt fence range offers unrivalled performance in controlling sediment pollution caused by silt laden construction site. For direct abstraction, promotion of household water treatment is advocated. Wavin | WavinThe ACO Universal Gully provides fast and simple connection between any channel up to 200mm bore width in the ACO channel drainage range. Wrap and overlap the geotextile covering the entire AquaCell structure. 7mm. Aquacell Core Inf. Our large fleet of specialist waste management. It comes complete with. Extend the bund beyond the edges of the silt trap to ensure no water flows around the outside of the bund, missing the silt trap. Ph: +613 9587 2297 Fax: +613 9587 1172 [email protected] a discharge into a traditional drainage system contains silt or grit, for example from a hard standing with car wash facilities, there should be facilities for the separation of such substances. 300mm sediment catchment. Sand and silt traps should be installed prior to any stormwater discharge entering an infiltration or attenuation tank. They separate oil from water, and safely retain the oil until it is removed. 5. Silt traps. The International Standard, EN 1825: Grease Traps specifies a nominal size (NS), a repeatable sizing method, provides performance based criteria for product design and quality control. High and Medium Pressure Steam Trap Discharge Into Pumped Condensate Return Line: PDF. 5 ac/100 ft of flow, filter fabric fences may be effective. 4 Wavin AquaCell Systems PIM Customer Services: 0844 856 5152 Technical Advice: 0844 856 5165 Introduction to SuDS Continuing urban development, a changing climate and the consequences of increased rainfall are all increasingly prominentSilt trap (gabion) at the Nyanyadzi Irrigation Scheme. This will take around 30 minutes, or up to 60 minutes – 2 hours for a larger tank. Wavin silt traps help remove silt and sand particles from your stormwater management system. In Stock. 75: 6lb600 Wavin 500mm Silt Trap 1. With a 20 tonne per square metre compressive strength it will withstand and support the load of general maintenance vehicles such as grass cutters. This highly effective silt trap assists in limiting the environmental and asset maintenance. These. Our standard 320mm X 580mm mini silt trap is for 110mm underground surface water drainage systems. 1. Including Alarm with Silt Probe and KD100 600mm x 600mm D400 Cover and Frame. (16 products) Basin traps are essential in any room where there is a sink. Grease Management. Brand PBSL Group. 8 Rainwater Diversion Valve 2. We provide world class customised plastic fabricated products for all types of specialised applications. , silt fence, rock/soil berm, gravel. co. Geotextile silt fences. Ex Tax:£1,675. For each silt trap facility location illustrated, different cross-section design types were implemented. Separators are designed and tested to EN 858-1. 54: Aquacell Domestic Silt Trap Bn 250x750 6lb300 £331. Silt traps filter out physical sediment to prevent sediment buildup in the drywell. Fabricated from 6mm PVC and/or polypropylene (PP) for below ground installationSilt (sediment) provides a significant source of phosphorus. of water for stock water, domestic supply and irrigation. Note: Scottish Water is not obliged to do any of the above which is not practicable at reasonable cost. m. 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. g. SKU: S300RISE. Drywells require optimal conditions for onsite infiltration. Silt traps are usually supplied with a ‘disconnector trap’. Silt trap • Large and heavier silt particles enter into the house drain due to practice of washing utensils with ashes and pulverized brick bat. New Zealand’s original height adjustable silt pits are faster to install than traditional pits and require no pit adjustment call-backs. It might be found in the soil underwater or as sediment suspended in river water. We offer an extensive portfolio of Attenuation & Stormwater Management solutions, ideal for surface water drainage applications. A Infrastructure Company This website is owned and operated by Wolseley UK Ltd. Add to wishlist Add to Compare Email. Washdown and silt traps can be used in areas such as car. Available in black as standard. Underground Drainage. For use in a SUDs system to collect any suspended silts before a cellular soakaway/attenuation system. This trap has a small removable straining bucket and perforated grate. Above Ground Acid Neutralising Tank. Catalog code Wavin. Silt Traps and Flow Control. The weight of the excess material was. 5011479194195. Our. Browse our extensive BIM library for free Revit families. The gully traps also intercept silt and debris from a roof or a hard standing preventing it from entering the main. This will reduce the quantity of silt entering into the pond in the first placeContact supplier. 100mm Drainage pit seal. It. To be positioned upstream of attenuation or soakaway systems, such as RAINBOX. Showing 1 to 4 of 4 (1 Pages) Drainage Silt Traps. Sorting out the front driveway and rainwater drainage as we start to wrap things up on this phase of The Home Extension!AquaCell domestic silt trap 250mm depth 750mm 6LB300 Wavin AquaCell domestic silt trap bucket 6LB302 Wavin AquaCell domestic silt trap extension piece. 29 $6. Add to Cart. With preventive methods to reduce turbidity (silt trap, extraction method) the water is still turbid & contaminated and will require treatment. Halgan silt traps are made from polyethylene, a strong, durable and hard wearing material. They prevent solid waste e. bizPOA. Special Order. This requires the use of lagoons, settlement tanks or grassy areas that slow the water down enough for the solids to. A masonry chamber works like a grit chamber that shares the silt, sand, etc. This innovative product operates on the principal of gravity separation. Choose an option 160mm Pipework (standard) Clear. login. 7 Winston Place Henderson, 0610. but mostly no. Have questions? Call 061 970197. In setup #1. Attach a garden hose to the drain valve typically found on the side of the water heater tank. Trap 300mm for 110mm Pipe or 150mm TwinwallThis 300mm diameter factory-built silt trap is delivered to site ready for installation. Silt comes in several forms. They may be constructed as smaller sediment traps – serving disturbed. SecuraGold™ sizes. Silts and sludges are waste streams that are defined to have a high solid content, which if left over time can cause blockages in drainage systems and storage tanks. For the catchment and removal of silt and debris from roofs and hard standing areas, before entering the surface water drainage system. Operation. Manufactured and designed to meet ISO 9001 & ISO 14001 and EN 1825-1:2007 standards. SILT and PLASTER TRAPS. For use with Wavin 6LB300 domestic silt trap. That’s why silt traps come in a range of sizes, so make sure you choose one that is suitable for your needs. A manhole cover is not supplied with this product. FOG are lighter in density and float at the surface of the tanks, and the cooled water – minus the FOG - continues draining to the sewer system. They are intended to be used as a guide in the preparation and submittal of plans for private development and city contract projects within the City of Raleigh and the city's extra-territorial jurisdiction. Effectiveness Design engineers should construct sediment traps in accordance with design manual specifications to ensure high sediment removal efficiency, generally 50 to 70 percent (Wossink et al. 16. 99 $ 264. nzGabions are one of the crucial feature elements of dry land landscape water harvesting design. Polystorm Lite – PSM2. It is as much a manufacturer’s standard as it is a guide for specifiers. 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. View Everhard Industries' range of commercial & residential stormwater solutions & products including Stormwater Pits, Risers, Pollutant Trap & Accessories. 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. It is during this time period, the sediments tend to settle in the trap. , 2005). $7. An optional auto-flush valve keeps the filter mesh screen clean, or it can be manually flushed by opening the bottom flush valve. Still, a trap’s performance Aquacell domestic silt trap bn 250x750 Wavin : £331. Slow down water velocity, whenever possible, to minimise scouring and the loss of suspended sediments. This section shall not apply to fixtures with integral traps. 66. A view of a silt trap on the construction site. 7. Installed outside, they are usually found under a downspout or external grey wastewater discharge point. Clogged pipes or silted soakaways can cause a build-up of this surface water. 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.