Fully accredited sewage treatment plants


UNRIVALLED  CHOICE with UNRIVALLED  PERFORMANCE





Designed to suit all developments, all site conditions, all discharge requirements and client budgets, our portfolio of sewage treatment plants is fully accredited and backed by extensive knowledge, experience and end-to-end customer support, giving our customers unrivalled choice with unrivalled performance.

But don’t just take our word for it. Check out our range of systems and read what our valued merchants, installers and end-users have to say about us below.


Solution Application People served Performance
BOD:SS:NH3 mg/ltr
CE approval
Ensign / Ensign:Shallow
Ensign

Intensive biological treatment for domestic dwellings

End users, merchants and installers recommend the Ensign range due to its ease of installation, reliability and cost-effective operation and maintenance.
The Ensign:Shallow is often favoured when hard rock site conditions make deeper tank installations impractical, thus removing costly and time-consuming excavation.

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6-50 11.5:19.2:8.4 BS EN 
12566-3
Ultra:Polylok-L
Ultra:Polylok-L

Industrial performance for small domestic dwellings

The Marsh Ultra:Polylok L (UPL) draws upon Marsh Industries’ extensive experience in the industrial and commercial sewage treatment sectors bringing its outstanding performance and high-quality engineering to the domestic sector.

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6-12 16.7:26.2:15.4 BS EN 
12566-3
Portapura
Portapura

Portable, compact sewage treatment for small domestic dwellings, holiday homes, caravans, portakabins or temporary accommodation

Portapura is a space-saving solution, can be installed above or below ground and treats domestic wastewater to a level that is 25 times better than the recommended EN standard.

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2-5 14:19:0.7 BS EN 
12566-3
Uni:Gem★
Uni-Gem STAR

Unique septic tank conversion unit for domestic dwellings

Replaces or upgrades an existing septic tank to a sewage treatment plant, conforming with 2020 General Binding Rules for septic tanks or small sewage treatment plants for domestic use.

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6-12 12.25:16:14.8 BS EN 
12566-3
12566-6
Marsh:Standard
Marsh:Standard

Cost-effective commercial/industrial sewage treatment

Provides biological treatment to off-mains wastewater on large residential, commercial, industrial and leisure sites.

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50-300+ 20:30:20 Designed
to BS EN
12255
Ultra:Polylok
Ultra:Polylok

High performance commercial/industrial sewage treatment

Provides advanced biological treatment to off-mains wastewater on large residential, commercial, industrial and leisure sites, particularly where onerous consent standards preclude the use of standard ‘off the shelf’ units.

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50-500+ Bespoke design Designed
to BS EN
12255





What our clients say about us



We recommend and sell many Marsh sewage treatment plants based on their quality and competitive pricing. We know that when a Marsh tank is sold we’re not going to hear from that customer again… unless they want another one.


Marsh Industries as a company have been great to deal with over the last 10+ years and have always been my preferred supplier. The products are great quality and even when there has been minor issues they have been sorted very quick, which is rarely heard of in this industry. My favourite part of the company is being able to have a working relationship with all the staff and having a rep’ that is always on the end of the phone to answer/sort everything straight away …Amazing all round.



We have worked with Marsh for over 5 years now and, as a consultant and installer of sewerage treatment plants and off main installations, we are often asked for our recommendation as to which treatment plant to use. We always recommend Marsh plants because their package treatment plant is a quality shell, simple to install and has minimal mechanical parts to achieve the above standard/required discharge qualities.
They are very good with deliveries, always on time and accommodating when changes are required.
We also use the design team at Marsh frequently to assist with sizing and selection for more commercial/multi-house projects.
We operate an after install service package and the simple system makes this sector of our business a success and an ease to manage.
Our contracts extend to nationwide insurance companies who also endorse our decision to use the Marsh system as a trusted choice.



Excellent business, very efficient, knowledgeable staff who go the extra mile to ease the purchase process. Overall a great company to deal with.


We have installed Marsh STPs for the last 4 years, robust products with fantastic technical support from their Regional Sales director – pleasure to deal with the company.



We find the Marsh Ensign units really popular with end users and installers alike – compact, reliable units with very little to go wrong. The literature is beneficial, informative and easy to understand, with Nigel always on hand to assist with any queries that may crop up. On the whole Marsh are very easy to deal with which is why they’re our preferred choice for wastewater tanks.



As you know, you are our supplier for all Treatment Tanks/Septic Tanks and have never had any issues in regards to Delivery, quality or after service.

We have not received any phonecalls in regards to issues with your tanks outside our recommended service dates and customers have only had good things to say to us in regards to the tanks and that they are very happy.

As your customer, we have only positive things to say about our experience with the company as a whole.


The robust construction of Marsh tanks makes them a stress free installation.

The inherent reliability of a Marsh sewage treatment plant means that we, as installers, remain in our customers good books for decades to come!

Over the years, Marsh have consistently given high quality products, backed up by superb technical and aftersales support.



Get in touch with us to discuss our unrivalled range of sewage treatment plants, we’d be delighted to hear from you.

Let’s talk