API Separator

Preventing Water Pollution with API Separation

An API separator is a specialized device used to separate oil and suspended solids from stormwater or industrial runoff before it enters a drainage system or waterway. Using gravity and a multi-chambered design, API separators allow oil to rise to the surface and solids to settle at the bottom, ensuring cleaner water is discharged and helping prevent environmental pollution.

Schedule a free consultation

Our PRocess

1.

Complete all health and safety paperwork.

2.

Pre-start meeting, hazard Identification, confined space entry permit, job safety analysis.

3.

Dutton Stormwater will remove all the sediment, litter and vegetation using a vacuum truck.

4.

We remove all the spent media from the modules and wash the modules down completely.

5.

We vacuum the chamber once more.

6.

We replace the media with fresh media.

7.

Polluted waste is disposed of at an approved environmental disposal facility.

8.

We send the customer and council (if requested by the customer) a full report of the service.

How API Separators Work

Stormwater or process water enters the separator and flows slowly through a series of chambers. Heavier solids settle to the bottom, while lighter oils and hydrocarbons float to the top. The clarified water exits the system, while collected oil and solids are retained for safe removal and disposal.

Why Maintenance Matters

Regular maintenance is essential to keep API separators functioning effectively. Over time, oil and solids accumulate in the chambers, reducing treatment efficiency and increasing the risk of blockages, flooding, or non-compliance with council and environmental requirements.

Professional API Separator Maintenance Services

At Dutton Stormwater, we provide comprehensive API separator maintenance services across New Zealand. Our team inspects, removes accumulated oil and solids, and ensures your separator is operating efficiently and in line with environmental standards.

Recommended Service Frequency

API separators typically require maintenance every six to twelve months, depending on site activity and pollutant loading. During each service, we assess the separator’s condition and includes a job summary with any recommendations in your service report.

Extend the lifespan of your API Separator.

Get in touch with us today and Schedule your regular maintenance.

Trusted by councils & leading enterprises.

Hear it from our clients

    
 
 
       Posted on Google  
   
   hani albarni 
 
 
 
 Trustindex verifies that the original source of the review is Google. Amazing culture amazing team to work with 👌🏻
  
 
      Posted on Google  
   
   theresa coleman 
 
 
 
 Trustindex verifies that the original source of the review is Google. It was a comedy of errors dropped keys down storm water, then dropped grill trying to retrieve the.Kat and Grant saved the day. You guys rock!!
  
 
      Posted on Google  
   
   Commercial Realty Limited 
 
 
 
 Trustindex verifies that the original source of the review is Google. The Property Management Team here at Commercial Realty use Dutton Stormwater for our commercial portfolios stormwater maintenance requirements. They have excellent customer service, fair and competitive pricing and great communication right through to beginning to the end of the job. We highly recommend Dutton for all stormwater maintenance services!
  
 
      Posted on Google  
   
   Lisa Wilson 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent customer service right from the start of my enquiry.  I'm very happy with the job completed (cleaning of stormwater detention tank and cesspits) and with the service by each team member who I had contact with throughout the process.
  
 
      Posted on Google  
   
   Cameron Hicks 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great!

See More great Testimonials

Stay in the know with the latest from Dutton Stormwater.

Facilities Management Conference – Te Pae – Christchurch

On the 20-21 September Dutton Stormwater attended and exhibited at the FM Summit Aotearoa held at the Te Pae Convention Centre in Otauthai, Christchurch hosted by FMANZ (Facilities management Association ...

From the Directors Desk November 23

I'm constantly reminded how lucky we are to have built the amazing team that make up Dutton Stormwater. Great equipment and smart systems can make a business more agile and ...

South Auckland Branch opens for Spring

It is starting to feel like Spring at the Dutton Stormwater yards. So many new faces, a flurry of activity and the warmth of the sun is certainly energising every ...

The Rain Gardeners

The Rain Gardeners is a sister company to Dutton Stormwater and we've been proud to collaborate on some great rain garden maintenance projects this spring. We've also agreed some regular ...

Facilities Management Conference – Te Pae – Christchurch

On the 20-21 September Dutton Stormwater attended and exhibited at the FM Summit Aotearoa held at the Te Pae Convention Centre in Otauthai, Christchurch hosted by FMANZ (Facilities management Association ...

API Separator

Preventing Water Pollution with API Separation

Our PRocess

How API Separators Work

Why Maintenance Matters

Professional API Separator Maintenance Services

Recommended Service Frequency

Extend the lifespan of your API Separator.

Trusted by councils & leading enterprises.

Hear it from our clients

Stay in the know with the latest from Dutton Stormwater.

Memberships & Certifications