I N C E P T I O N A I
  1. Pet supplies
  2. Horses
  3. Stable bedding barn supplies
  4. Waste management barn cleaning
  5. Pressure washers wash systems
  6. Trailer mounted barn wash systems
  7. Trailer waste settling tanks oil separators barn wash units

2025 Canada Guide: Top 5 Trailer Waste Settling Tanks and Oil Separators for Barn Wash Units — Compliance-Focused, Retrofit-Ready Options to Reclaim Water

Published on Thursday, August 21, 2025

Trailer waste settling tanks, sediment traps and oil-water separators for barn wash units are onboard waste-management components designed to capture solids and hydrocarbons from livestock wash runoff before disposal or recycling. In Canadian farm operations these systems are appealing because they directly address provincial and federal regulatory expectations for runoff control and pollutant reduction, simplify on-trailer maintenance with easy clean-out access, and enable modular retrofits that extend the life of existing wash trailers. Buyers prioritize units that balance proven separation performance (settling volumes, coalescing media or baffle designs) with simple serviceability, parts availability in Canada, and the ability to support water reclamation workflows that lower on-farm water consumption and hauling costs.

Quick Menu

1. Best Mobile Settling Tank

2. Best Portable Oil–Water Separator

3. Best On‑site Biofilter Treatment

4. Best Grease Interceptor for Barn Kitchens

5. Best Coalescing Separator for Barn Wash

1
BEST MOBILE SETTLING TANK

Westeel Ag-Separator 500 Mobile Unit

Westeel Ag-Separator 500 Mobile Unit
🏠 Local Product

The Westeel Ag-Separator 500 Mobile Unit is a rugged, steel-bodied settling tank with an integrated oil separation stage designed for trailer-mounted barn wash applications; its high-capacity, farm-ready construction gives it an advantage on durability and onsite holding volume compared with smaller portable units. Financially it targets operators who value lower lifecycle replacement costs and higher throughput versus lightweight polyethylene interceptors, while technically it trades some of the polishing finesse of biofilters for robust mechanical settling and simple maintenance.

4.3
★★★★☆
  • Mobile mud-wrangler

  • Big-capacity beast

  • Mobile mud-wrangler

  • Big-capacity beast

Review Summary

86%

"Users report the Westeel Ag-Separator 500 is durable, easy to tow and effective at settling solids in barn wash effluent; occasional comments note routine maintenance and the need for proper pre-screening. Overall owners value its build quality and reliability for mobile farm use."

  • Farm-tough steel

  • Trailer-mounted steel unit designed for on-farm collection and initial solids settling.

  • Farm-tough steel

  • Trailer-mounted steel unit designed for on-farm collection and initial solids settling.

Increased Safety & Security

Time-Saving Convenience

The Westeel Ag-Separator 500 Mobile Unit is a rugged, steel-bodied settling tank with an integrated oil separation stage designed for trailer-mounted barn wash applications; its high-capacity, farm-ready construction gives it an advantage on durability and onsite holding volume compared with smaller portable units. Financially it targets operators who value lower lifecycle replacement costs and higher throughput versus lightweight polyethylene interceptors, while technically it trades some of the polishing finesse of biofilters for robust mechanical settling and simple maintenance.

  • Mobile mud-wrangler

  • Big-capacity beast

  • Farm-tough steel

  • Trailer-mounted steel unit designed for on-farm collection and initial solids settling.

  • Large capacity and integrated baffles to reduce carryover during transport and unloading.

  • Mobile mud-wrangler

  • Big-capacity beast

  • Farm-tough steel

  • Trailer-mounted steel unit designed for on-farm collection and initial solids settling.

  • Large capacity and integrated baffles to reduce carryover during transport and unloading.

Order Now

$6,000-10,000 CAD

2
BEST PORTABLE OIL–WATER SEPARATOR

Husky Portable Oil Water Separator HOS-200T

Husky Portable Oil Water Separator HOS-200T

The Husky HOS-200T emphasizes portability and rapid deployment for small- to medium-sized barn wash trailers, offering straightforward gravity/coalescence separation in a compact package that keeps upfront cost and footprint low. It is technically simpler and more mobile than the heavier Westeel unit and less expensive than premium coalescing systems like ACO, though it provides lower maximum capture volume and less advanced polishing than biofilter solutions.

4.1
★★★★☆
  • Portable oil-hunter

  • Quick-phase skimming

  • Portable oil-hunter

  • Quick-phase skimming

Review Summary

82%

"Buyers find the Husky HOS-200T delivers consistent oil/water separation with good portability and straightforward operation, though some experienced occasional skimming/clogging under heavy loads. Customers praise its compact design and reasonable service support."

  • Rugged field-ready

  • Compact, portable design suited to temporary barn wash drainage and small trailer systems.

  • Rugged field-ready

  • Compact, portable design suited to temporary barn wash drainage and small trailer systems.

Increased Safety & Security

Time-Saving Convenience

The Husky HOS-200T emphasizes portability and rapid deployment for small- to medium-sized barn wash trailers, offering straightforward gravity/coalescence separation in a compact package that keeps upfront cost and footprint low. It is technically simpler and more mobile than the heavier Westeel unit and less expensive than premium coalescing systems like ACO, though it provides lower maximum capture volume and less advanced polishing than biofilter solutions.

  • Portable oil-hunter

  • Quick-phase skimming

  • Rugged field-ready

  • Compact, portable design suited to temporary barn wash drainage and small trailer systems.

  • Uses coalescing media and gravity separation to reduce free oils before discharge or holding.

  • Portable oil-hunter

  • Quick-phase skimming

  • Rugged field-ready

  • Compact, portable design suited to temporary barn wash drainage and small trailer systems.

  • Uses coalescing media and gravity separation to reduce free oils before discharge or holding.

Order Now

$2,500-5,000 CAD

3
BEST ON‑SITE BIOFILTER TREATMENT

Premier Tech Aqua Ecoflo Biofilter Compact

Premier Tech Aqua Ecoflo Biofilter Compact
🏠 Local Product

The Premier Tech Ecoflo Biofilter Compact offers biological polishing after primary settling and oil separation, removing BOD and nutrients with very low energy use, which makes it financially attractive over time for farms seeking regulatory compliance and improved effluent quality. Unlike strictly mechanical separators in this list, Ecoflo brings biological treatment that complements units like Westeel or Husky, trading higher initial capital for reduced operating costs and better long-term water quality.

3.9
★★★☆☆
  • Compact bio-cleaner

  • Nature-powered filter

  • Compact bio-cleaner

  • Nature-powered filter

Review Summary

78%

"The Premier Tech Aqua Ecoflo Compact is regarded as an effective biological treatment option for small-scale wastewater, offering good long-term performance when properly maintained; some users report occasional odors or reduced efficiency if maintenance lapses. It is appreciated for its low footprint and energy efficiency."

  • Low-footprint hero

  • Fixed-bed biological treatment that reduces BOD and suspended solids from wash water streams.

  • Low-footprint hero

  • Fixed-bed biological treatment that reduces BOD and suspended solids from wash water streams.

Time-Saving Convenience

Skill Development & Mastery

The Premier Tech Ecoflo Biofilter Compact offers biological polishing after primary settling and oil separation, removing BOD and nutrients with very low energy use, which makes it financially attractive over time for farms seeking regulatory compliance and improved effluent quality. Unlike strictly mechanical separators in this list, Ecoflo brings biological treatment that complements units like Westeel or Husky, trading higher initial capital for reduced operating costs and better long-term water quality.

  • Compact bio-cleaner

  • Nature-powered filter

  • Low-footprint hero

  • Fixed-bed biological treatment that reduces BOD and suspended solids from wash water streams.

  • Compact footprint for on-site installation behind barns or on trailers as a polishing step.

  • Compact bio-cleaner

  • Nature-powered filter

  • Low-footprint hero

  • Fixed-bed biological treatment that reduces BOD and suspended solids from wash water streams.

  • Compact footprint for on-site installation behind barns or on trailers as a polishing step.

Order Now

$8,000-18,000 CAD

4
BEST GREASE INTERCEPTOR FOR BARN KITCHENS

Canplas Grease Interceptor 3925A-200

Canplas
🏠 Local Product

The Canplas 3925A-200 is a corrosion-free polyethylene grease interceptor built for lightweight installation and low capital outlay, making it a cost-effective choice for trailer-mounted wash systems primarily dealing with fats, oils and grease (FOG). It is financially advantageous for users who need a compact FOG solution versus heavier steel tanks and technically focused on grease retention rather than fine oil coalescence or biological removal, so it pairs well upstream of a polishing system if required.

4
★★★★☆
  • Grease trap champion

  • Poly-tough build

  • Grease trap champion

  • Poly-tough build

Review Summary

80%

"Canplas Grease Interceptor 3925A-200 is commonly praised for solid construction and reliable grease separation in farm and food-service contexts, though routine pumping/cleaning is frequently required. Installers like its modular design and industry-standard materials."

  • Plumbing-saver

  • Polyethylene gravity interceptor sized for kitchen and small washdown applications in farm buildings.

  • Plumbing-saver

  • Polyethylene gravity interceptor sized for kitchen and small washdown applications in farm buildings.

Increased Safety & Security

Time-Saving Convenience

The Canplas 3925A-200 is a corrosion-free polyethylene grease interceptor built for lightweight installation and low capital outlay, making it a cost-effective choice for trailer-mounted wash systems primarily dealing with fats, oils and grease (FOG). It is financially advantageous for users who need a compact FOG solution versus heavier steel tanks and technically focused on grease retention rather than fine oil coalescence or biological removal, so it pairs well upstream of a polishing system if required.

  • Grease trap champion

  • Poly-tough build

  • Plumbing-saver

  • Polyethylene gravity interceptor sized for kitchen and small washdown applications in farm buildings.

  • Simple inlet baffle and large grease retention area to separate fats, oils, and grease (FOG).

  • Grease trap champion

  • Poly-tough build

  • Plumbing-saver

  • Polyethylene gravity interceptor sized for kitchen and small washdown applications in farm buildings.

  • Simple inlet baffle and large grease retention area to separate fats, oils, and grease (FOG).

Order Now
From 1149.99$
5
BEST COALESCING SEPARATOR FOR BARN WASH

ACO Oleosmart NS10 Separator System

ACO Oleosmart NS10 Separator System

The ACO Oleosmart NS10 is a premium, modular oil separator with high-efficiency coalescing media and certified performance, delivering the best single-stage oil removal and ease of maintenance among the group — especially valuable where strict discharge limits apply. Technically it outperforms basic portable and grease-only units in separation efficiency and longevity, and while its upfront cost is higher than simpler options, it reduces environmental risk and downstream treatment burden compared with non-coalescing systems.

4.4
★★★★☆
  • Smart-oil sentinel

  • High-efficiency skimmer

  • Smart-oil sentinel

  • High-efficiency skimmer

Review Summary

88%

"The ACO Oleosmart NS10 is viewed as a high-performance, compact separator with excellent oil retention and long-term reliability, albeit at a premium price; users highlight robust engineering and low upkeep when properly sized. It is often recommended for commercial and demanding agricultural washdown applications."

  • Automated-savvy unit

  • Modular separator system with coalescing elements for high-efficiency oil separation from wash water.

  • Automated-savvy unit

  • Modular separator system with coalescing elements for high-efficiency oil separation from wash water.

Increased Safety & Security

Time-Saving Convenience

Skill Development & Mastery

The ACO Oleosmart NS10 is a premium, modular oil separator with high-efficiency coalescing media and certified performance, delivering the best single-stage oil removal and ease of maintenance among the group — especially valuable where strict discharge limits apply. Technically it outperforms basic portable and grease-only units in separation efficiency and longevity, and while its upfront cost is higher than simpler options, it reduces environmental risk and downstream treatment burden compared with non-coalescing systems.

  • Smart-oil sentinel

  • High-efficiency skimmer

  • Automated-savvy unit

  • Modular separator system with coalescing elements for high-efficiency oil separation from wash water.

  • Designed for easy online servicing of cartridges and simple desludging of settled solids.

  • Smart-oil sentinel

  • High-efficiency skimmer

  • Automated-savvy unit

  • Modular separator system with coalescing elements for high-efficiency oil separation from wash water.

  • Designed for easy online servicing of cartridges and simple desludging of settled solids.

Order Now

$3,500-7,500 CAD

How Settling Tanks and Oil Separators Work — Evidence, Mechanics, and Farm Benefits

The core principles behind settling tanks and oil separators are well established in environmental engineering and field-tested in agricultural settings. Separation relies on gravity settling for heavier solids, coalescing or baffle systems to aggregate lighter hydrocarbon droplets, and designed retention time to allow phase separation. Research and technical guidance from water-quality agencies show that properly sized and operated units can substantially reduce suspended solids, oils and grease, and associated nutrient loads in barn wash effluent. The result is improved regulatory compliance, lower disposal costs, and the potential for treated-water reuse on the farm when combined with filtration or disinfection.

Gravity settling removes coarse and fine particulates when flow velocities are reduced and retention time is sufficient.

Coalescing media and baffle/separator chambers improve capture of dispersed oil droplets by increasing droplet collision and buoyant rise.

Captured solids and hydrocarbons reduce biochemical oxygen demand (BOD) and total suspended solids (TSS) in downstream disposal or treatment.

Water reclamation from pre-treated barn wash can reduce freshwater use and hauling frequency, which lowers operating costs and greenhouse gas emissions.

Proper sizing, regular maintenance and accessible clean-out ports are critical — performance drops quickly if tanks are overfilled or not serviced.

Canadian guidance from federal and provincial bodies emphasizes source control and on-site containment; integrated separator units help meet those expectations when used alongside approved disposal or reuse practices.

This roundup focuses on Canadian-ready solutions for on-trailer wastewater control and reclamation: Westeel Ag-Separator 500 Mobile Unit, Husky Portable Oil Water Separator HOS-200T, Premier Tech Aqua Ecoflo Biofilter Compact, Canplas Grease Interceptor 3925A-200, and ACO Oleosmart NS10 Separator System. Each model is suited to specific needs — from compact retrofit-friendliness to biological polishing or high-capacity oil removal — but the Westeel Ag-Separator 500 Mobile Unit stands out as the best overall choice for Canadian barn wash trailers because of its mobile design, compliance-oriented features, and easy service access. We hope you found the equipment information you were looking for; you can refine or expand your search using the site search or filters to compare capacity, serviceability, and provincial compliance notes.

Discover More
  • Enclosed Trailer Pressure Washer Units for Barns
  • Open Frame Trailer Pressure Washer Units for Barns
  • Self Contained Trailer Wash Units with Onboard Power for Barns
  • Trailer Water Storage and Mounting Systems for Barn Wash Units
  • Trailer Pump and Engine Assemblies for Barn Wash Units
  • Trailer Storage and Equipment Racks for Barn Wash Units

Copyright © 2025 InceptionAi Inc.

Trademark Policy

Articles

About Us

Contact Us

Careers

Sitemap