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High-Performance Sediment Filtration Systems
Engineered and validated by Tradingwise Limited to reduce turbidity (NTU), protect equipment, and extend system service life.
We design, test, and supply sediment filtration systems that remove suspended solids from water supplies. Our solutions are validated through in-house performance testing with continuous turbidity measurement and data logging.
What Tradingwise Does
Tradingwise Limited designs, tests, and supplies sediment filtration systems. These systems are engineered to remove suspended solids, reducing turbidity, protecting equipment, and preventing premature system failure. Our solutions deliver stable performance across the full service life of the filter, not only at start-up.
Validation is conducted through rigorous in-house testing. We measure turbidity pass-through (NTU), total litres processed, pressure behaviour, and service-life consistency under sustained sediment loading conditions, providing transparent, test-based performance data.
We specialize in sediment filtration and turbidity reduction for water treatment applications where reliability and validated performance are essential. Every system is matched to your specific water conditions, flow requirements, and downstream protection needs through our application engineering approach.
The Problems We Solve
High Turbidity (NTU)
Suspended solids increase water turbidity, reducing clarity and compromising the effectiveness of downstream processes like disinfection and purification.
Equipment Damage
Sediment accumulation leads to abrasion, clogging, and accelerated wear in valves, pumps, heat exchangers, and other sensitive process equipment.
Premature Filter Failure
Excessive particulate loading causes rapid differential pressure increase and early exhaustion of filter media, reducing operational lifespan and efficiency.
Inconsistent Water Quality
Fluctuations in sediment loads and suboptimal filtration performance result in variable effluent quality, impacting product consistency and compliance standards.
These challenges are common across residential, commercial, industrial, and municipal water applications. Tradingwise sediment filtration systems address each of these problems through engineered design and validated performance under real operating conditions.
Proven Performance: Test-Based Data
All performance data on this website is based on controlled testing conducted by Tradingwise under documented conditions.
Tradingwise Limited conducts all filtration testing in-house. This process involves continuous measurement and data logging throughout each test period. Performance is evaluated using key metrics including influent and effluent turbidity (NTU), pressure differential across the filter, and total volume processed before defined end-of-life criteria are reached.
Our testing protocols are designed to simulate sustained sediment loading conditions. This verifies filter behavior over their full operational run, providing reliable data for system specification and performance prediction in real-world applications.
Example result: In comparative testing, the TW91 filter processed approximately 3,500 litres before reaching its end-of-life criteria, while maintaining consistent turbidity reduction throughout the test run.
TW91 is a Tradingwise sediment filtration unit evaluated for turbidity reduction and service-life performance under sustained sediment loading

Application variability notice: Results vary depending on inlet water conditions, sediment composition, flow rate, operating pressure, and duty cycle. Performance data should be interpreted within the context of specific application parameters. End-of-life criteria are defined based on measured turbidity breakthrough and operational limits observed during the test run.
NTU vs Volume Processed: Performance Interpretation
This line chart illustrates the filtration performance of the TW91 filter by tracking turbidity (NTU) against the volume of water processed. The blue line represents the consistent inlet NTU, while the orange line indicates the effluent NTU after filtration. To interpret the chart effectively for engineering and procurement planning, observe the following phases:
  1. Initial Performance: At the start of the test run (Volume Processed = 0 Litres), the chart shows the initial reduction in NTU, demonstrating the filter's immediate effectiveness.
  1. Steady-State Operation: For the majority of the operational run, the effluent NTU (green line) remains stable and significantly lower than the inlet NTU. This period represents the filter's consistent, high-efficiency performance under controlled conditions.
  1. Breakthrough and End-of-Life: As the filter approaches its defined end-of-life criteria, a gradual increase in the effluent NTU (green line) indicates "breakthrough." This point signifies when the filter's capacity to remove turbidity is diminishing, guiding replacement schedules.
This data enables informed specification, maintenance planning, and prediction of service life before breakthrough, providing critical insights for filter selection and operational efficiency.
This chart shows typical performance from in-house testing under controlled conditions. Actual field performance will vary based on water chemistry, flow rate, and sediment characteristics.
Products
Products
Sediment filtration solutions configured to match your water conditions, flow requirements, and downstream protection needs.
Tradingwise supplies engineered sediment filtration systems validated through in-house testing. Each system is specified based on application requirements including source water turbidity, flow rate and equipment protection objectives.
Product Families
Whole-House Sediment Filtration (POE)
Designed for residential and commercial applications, these systems remove sediment at the point of entry to protect entire buildings. They reduce turbidity and protect fixtures, appliances, and downstream treatment equipment from particulate damage.
Commercial & Light Industrial Sediment Filtration
These systems are engineered for medium-scale commercial and light industrial operations. They protect sensitive equipment and processes from particulate matter, ensuring consistent water quality in non-heavy industrial settings.
High-Flow Industrial Sediment Filtration Systems
Configured for continuous operation in demanding heavy industrial environments, these systems manage high flow rates and sustained sediment loading. They provide robust protection for critical industrial processes.
RO Pre-treatment Filtration
Essential for protecting reverse osmosis (RO) and ultrafiltration (UF) systems, these units remove suspended solids and reduce particulate loading. They extend membrane life and maintain permeate quality by preventing fouling.
Custom Engineered Sediment Filtration Systems
These tailored solutions address unique site conditions, extreme turbidity levels, and specific infrastructure integration requirements. Tradingwise engineers bespoke designs for complex water chemistry, flow demands, and space constraints, with full technical support.
How to Choose the Right System
Selecting the optimal sediment filtration solution requires a thorough understanding of your application's unique needs. Our comprehensive application engineering approach ensures proper system selection by considering every aspect of your operating environment and performance requirements. To guide your decision, consider the following key factors:
Understanding Your Water & Flow Needs
  • Source Water Assessment: Characterization of source water type and sediment composition (e.g., sand, silt, organic matter).
  • Turbidity Levels: Inlet turbidity (NTU) and its typical range, including peak event considerations.
  • Flow Requirements: Required flow rate (GPM/M³/Hr) and peak demand, along with duty cycle and operational patterns.
  • Pressure Dynamics: Pressure limitations and available head to ensure efficient system operation.
Site Integration & Operational Factors
  • Installation Constraints: Footprint constraints and available space for system installation and access.
  • Maintenance Access: Expectations for maintenance intervals, ease of media replacement, or backwash requirements.
  • Downstream Equipment: Sensitivity of downstream processes or equipment to particulate matter, guiding filtration efficiency needs.
  • Environmental Factors: Temperature, environmental conditions, and any specific regulatory or compliance requirements.
Our engineering team meticulously evaluates these parameters to recommend the appropriate filtration technology, precise system sizing, and optimal configuration. This ensures not only superior performance and predictable service life but also seamless compatibility with your existing infrastructure and operational demands. Tradingwise provides application engineering support to specify the appropriate filtration solution for your requirements.
Technology
Sediment Filtration Technology
Depth-Based Particulate Capture for Stable Performance
Tradingwise filtration systems use depth-based particulate capture combined with rigid, non-compressible media structures. This approach is engineered to maintain performance under sustained sediment loading by helping prevent pore collapse under pressure and reducing the risk of contaminant unloading at high differential pressure.
Instead of relying only on surface capture, depth-based filtration retains particulate matter throughout the media structure, supporting consistent turbidity control and predictable service life behaviour across the operating run.
Sediment Filtration Principles
Sediment filtration is the mechanical removal of suspended solid particles including sand, silt, rust, scale, and fine particulate matter that contributes to turbidity, equipment wear, and system failure. In real-world water systems, effective sediment filtration is often the most important first stage — protecting downstream treatment technologies and stabilising overall performance.
What We Target
Sand and silt — suspended particles from natural sources and distribution systems that drive turbidity and equipment wear.
Rust and corrosion debris — iron oxide and pipe-scale particulates generated by ageing infrastructure and internal pipe surfaces.
Fine suspended particulates — microscopic particles that reduce clarity and may pass through conventional filtration approaches.
Particulate matter ≥ 0.5 μm — fine particulate load requiring depth filtration and stable media structures for effective capture and retention.
Core Technologies
Rigid, Non-Compressible Media
Tradingwise systems utilise rigid media structures designed to retain shape under pressure and maintain consistent filtration pathways. By avoiding media compression and pore collapse behaviour, systems support more stable filtration characteristics across the service period — including during higher sediment loading conditions.

Indicative particle size compatibility: approximately 0.3 mm to 2.0 mm (application dependent)
System Architecture
Tradingwise filtration systems are designed for flexible installation and operating requirements across residential, commercial, and industrial environments. Configurations are selected based on flow demand, pressure limits, sediment type, and maintenance expectations.
Point-of-Entry Systems (POE)
Engineered for whole-house and whole-building installations where high flow rates and controlled pressure drop are essential. POE systems protect all downstream fixtures, equipment, and secondary treatment systems.
Point-of-Use Systems (POU)
Compact filtration systems designed for targeted protection at specific outlets or critical processes. Sequential and parallel flow configurations can be applied depending on the requirements of the site.
Configuration Capability
Tradingwise systems can be configured for:
  • POE and POU installation environments
  • Sequential and parallel flow architectures
  • High flow rates with controlled pressure drop
  • Long service intervals under sustained sediment loading
Technical Specifications (Quick View)
Understanding Turbidity (NTU)
What Is NTU?
NTU (Nephelometric Turbidity Units) quantifies the optical clarity of water. It measures the amount of light scattered by suspended particulate matter, directly indicating water cloudiness or haziness.
Why NTU Matters
Monitoring NTU is crucial for assessing filtration efficiency, protecting downstream equipment from fouling or abrasion, and ensuring compliance with water quality standards. Low NTU indicates effective removal of suspended solids.
Typical NTU Ranges
Understanding baseline NTU aids system design. Mains water typically registers <1 NTU, borehole water ranges from 5-50+ NTU, and surface water often measures 10-100+ NTU, depending on source and conditions.
How We Measure NTU
Continuous NTU monitoring during filtration testing provides objective, quantifiable data. This reveals filter stability, breakthrough points, and service-life characteristics under various sediment loading conditions, enabling meaningful design comparisons.
NTU measurement serves as a primary performance indicator within our in-house testing protocols. This approach ensures robust evaluation of filtration effectiveness across diverse filter designs and operating parameters.
Why Filters Fail Early
Many sediment filters fail prematurely due to design limitations and real-world operating conditions that differ from idealised laboratory testing. Understanding these failure mechanisms is essential for proper system specification and realistic performance expectations.
Factors Contributing to Premature Filter Failure
  • Undersized Systems: Filters selected with insufficient capacity for the operational flow rate or total suspended solids load lead to rapid saturation, increased differential pressure, and shortened service life.
  • Poor Pre-filtration: Inadequate removal of larger or more abrasive particles upstream prematurely loads subsequent fine filtration stages, accelerating blockage and reducing overall system efficiency.
  • Incorrect Media Selection: Using filter media incompatible with the specific characteristics (size, shape, density) of suspended solids. This results in inefficient particle capture, rapid media blinding, or particle breakthrough.
  • Inadequate Backwashing: Insufficient flow rates, duration, or frequency during cleaning cycles prevent the effective removal of accumulated solids. This leads to progressive media fouling, reduced permeability, and diminished capacity.
  • Pressure Spikes: Sudden, transient increases in system pressure can dislodge previously captured particles (leading to breakthrough), cause irreversible damage to filter media, or compromise the structural integrity of the filter element.
  • Sediment Characteristics Mismatch: Filter systems designed for a specific range of particle sizes or types may encounter different, unanticipated sediment, leading to suboptimal performance, rapid clogging, or inability to achieve target effluent quality.
Addressing these common failure modes requires a thorough understanding of application-specific parameters and rigorous validation. Tradingwise implements comprehensive application engineering principles, conducting controlled testing that accurately simulates real-world conditions. This approach ensures our filtration solutions are specified to maintain consistent turbidity control and predictable pressure behavior throughout their operational lifespan, extending beyond initial start-up performance.
Testing & Performance
Testing & Performance
In-house testing to verify turbidity reduction (NTU), pressure behaviour, and service-life performance.
All testing is conducted at Tradingwise facilities using controlled conditions and continuous data logging.
Why We Test
At Tradingwise, we conduct controlled, in-depth testing to validate performance claims, understand potential failure modes, and continuously optimize our system designs. Our comprehensive testing protocols go beyond theoretical predictions, measuring how filters behave under sustained sediment loading throughout their full operational run, from initial start-up to defined end-of-life criteria. This commitment ensures we provide objective, repeatable data, enabling informed system specification and transparent performance insights for our customers.
What We Measure
01
Influent and Effluent Turbidity (NTU)
We continuously measure turbidity, expressed in Nephelometric Turbidity Units (NTU), at both the inlet (influent) and outlet (effluent). This quantifies the filter's suspended solids removal efficiency and detects any breakthrough, indicating when solids begin to pass through.
02
Pressure Differential
Monitoring the pressure difference across the filter is crucial for understanding how the filter accumulates particulate matter. A rising differential pressure indicates increasing filter loading and helps predict when cleaning or replacement is needed to maintain optimal flow and performance.
03
Volume Processed to End-of-Life
This metric quantifies the total volume of fluid processed by the filter before it reaches a predefined end-of-life condition, such as excessive pressure differential or a specific effluent quality threshold. It directly measures the filter's service life, enabling accurate planning for operational cycles and replacement schedules.
04
Flow Rate Stability
We verify that the desired flow rate is consistently maintained throughout the test, even as pressure differential changes due to filter loading. Stable flow rates ensure consistent system output and reliability, crucial for applications requiring an uninterrupted supply.
05
Test Duration and Performance Trends
Each test runs continuously over an extended period, simulating real-world operational conditions. This allows for time-series analysis of all measured parameters, identifying performance degradation over time, stability periods, and the filter's overall longevity under sustained loading.
These measurements are logged continuously throughout each test run and compiled into comprehensive performance reports. Data is presented with full test condition documentation to enable proper interpretation and application to real-world scenarios.
TW91 Results Summary
3500
Litres Processed
Volume before end-of-life criteria under controlled conditions
72
Test Duration (Hours)
Continuous operation simulating real-world use
45
Inlet Turbidity (NTU)
Consistent turbidity challenge at filter inlet
<5
Effluent Turbidity (NTU)
Maintained at outlet during stable performance period
20
Flow Rate (L/min)
Constant flow rate maintained throughout the test
Testing indicates the TW91 filter effectively reduces turbidity and processes a notable fluid volume under defined conditions. Performance includes a stable period with consistent low effluent turbidity, followed by a transition in performance as the filter approaches capacity.
These results were obtained from controlled in-house testing with specific sediment composition, flow rate, and operating parameters. Field performance will vary based on actual water conditions, duty cycle, and application-specific factors.

Important: All performance data is specific to the test conditions documented in the full report. Results should be interpreted with appropriate consideration of application variability including water chemistry, sediment characteristics, flow patterns, and operational parameters.
Performance Claims
Performance Claims
How Tradingwise communicates filtration performance safely, clearly, and responsibly.
Test-Based & In-House Validation
All Tradingwise performance claims are derived from rigorous, controlled testing conducted in our facilities. We ensure each statement is rooted in measurable results, not speculation.
Application Variability & No Guarantees
Filtration performance is influenced by diverse factors like inlet water characteristics, sediment composition, and operating conditions. Therefore, we avoid absolute guarantees, as real-world results will vary.
Comprehensive Context & Data Transparency
Every performance claim is accompanied by detailed context, including full documentation of test conditions, methodology, and observed NTU reduction. We provide data that reflects actual system behavior.
Commitment to Ethical Communication
Our approach prioritizes transparency and regulatory compliance. We provide engineering-led, factual information, free from marketing exaggeration, to enable informed decision-making.

Safe Use Notice: Sediment filtration should be used with water of known quality or with appropriate disinfection where required. Filtration removes particulates but does not provide microbiological protection or chemical contaminant removal without additional treatment stages.
Industries
Industries
Sector-specific sediment filtration solutions built around performance validation and system protection.
Tradingwise supplies sediment filtration systems across multiple sectors, each with distinct water quality challenges and equipment protection requirements. Our application engineering approach ensures systems are matched to sector-specific operating conditions.
Residential & Commercial
Point-of-entry sediment filtration for building protection and water quality improvement in homes, offices, and commercial facilities.
Industrial & Manufacturing
Process water filtration to protect equipment, maintain product quality, and reduce maintenance costs. Includes food & beverage applications.
Municipal & Infrastructure
Sediment removal for public water systems, treatment plants, and infrastructure protection.
Agriculture & Aquaculture
Filtration for irrigation systems, livestock water supply, and aquaculture operations to reduce turbidity and protect pumps and distribution equipment.
Humanitarian & Emergency
Portable and rapid-deployment filtration systems for disaster relief, emergency water supply, and field operations.
Temporary Infrastructure
Sediment filtration for construction sites, temporary facilities, and mobile operations.
Insights
Insights
Practical engineering guidance on turbidity, sediment loading, and filtration performance.
Technical articles and application notes to help engineers, facility managers, and procurement teams understand sediment filtration performance, system selection, and maintenance best practices.
Understanding Turbidity (NTU)
Explore turbidity measurement, its relationship to suspended solids, and its critical role in filtration assessment and water quality control.
Optimizing Filter Sizing & Selection
Guidance on selecting the correct filter size and type to prevent premature failure, reduce pressure drop, and maximize service life.
Establishing Filter Maintenance Intervals
Learn to interpret filtration performance data and pressure differential curves to forecast replacement schedules and
optimize operational efficiency.
RO Pre-treatment for Membrane Protection
Strategies for effective upstream sediment removal and turbidity control to safeguard reverse osmosis membranes from particulate fouling.
Challenges of Borehole Water Filtration
Addressing the specific complexities of filtering borehole water, including sediment variability, iron, and manganese removal for consistent quality.
Comparing Depth vs. Surface Filtration
An in-depth look at the mechanisms, loading characteristics, and ideal applications for both depth and surface filtration technologies.
About
About Tradingwise Limited
Tradingwise Limited is a UK-based, privately owned sediment filtration specialist. Our focus is on engineering-led validation, application-matched system selection, and transparent performance communication. We design, test, and supply sediment filtration solutions for applications where effective turbidity reduction and suspended solids removal are critical.
Our approach is grounded in practical filtration technology combined with rigorous in-house testing protocols. All performance statements are derived from measured data under documented conditions, providing engineers, procurement teams, and industrial buyers with informed specifications and realistic performance expectations.
We serve residential, commercial, industrial, municipal, agricultural, and humanitarian sectors with filtration systems engineered for stable performance throughout their operational service life. Our technical team offers dedicated application engineering support for complex installations, sensitive downstream equipment, and challenging water conditions.
Tradingwise is committed to advancing sediment filtration performance through continuous research, development, and validation testing. We maintain comprehensive technical documentation, performance data, and engineering resources to support accurate system specification and long-term operational success.
Contact
Contact Tradingwise Limited
Request a Quote
To provide an accurate quotation, please supply the following information about your application:
  • Source water type (mains, borehole, surface, etc.)
  • Required flow rate (litres per minute or hour)
  • Inlet turbidity (NTU) if known, or description of sediment
  • Downstream equipment requiring protection
  • Installation constraints or special requirements
  • Expected duty cycle and operational pattern
Our engineering team will review your requirements and recommend filtration solutions matched to your application parameters.
Speak to an Engineer
For sensitive applications including reverse osmosis membrane protection, critical process water, or challenging water conditions, we recommend direct consultation with our engineering team.
Technical discussions cover system design, performance expectations, integration requirements, and validation documentation for your specific application.
Download Test Report
Access our comprehensive performance report including NTU vs volume charts, test conditions, and interpretation guidance.

Contact Details: Tradingwise Limited | Email: sales@tradingwise.co.uk | Phone: +44 (0) 203 086 8169
Download Test Report
Request the Test Report
Request the Tradingwise sediment filtration performance report and supporting charts for engineering evaluation.
What You'll Receive
Performance Report (PDF)
Complete test results and methodology documentation
NTU vs Volume Chart Results
Graphical performance data showing turbidity reduction over service life
Test Conditions Summary
Detailed parameters including flow rate, inlet turbidity, and test duration
Interpretation Guidance
How to apply test data to your specific application requirements
Request Access
The performance report will be emailed to after verification. The report includes comprehensive test data, charts and application guidance to support your filtration system specification and procurement process.

Note: The report will be emailed after request. For immediate technical consultation, please contact our engineering team directly.
Tradingwise Limited | Email: sales@tradingwise.co.uk | Phone: +44 (0) 203 086 8169
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