Septic tanks

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Discover the simplest way to protect your property and the environment with our Rewatec septic tanks.

Rewatec septic tank range
Commercial and municipal solutions icon for septic tanks
Commercial solutions

Pre-engineered designs

Bespoke designs

Above or below ground installations

Concrete or granular surround


Residential solutions icon for septic tanks
Residential solutions

Lightweight and easy to manoeuvre

Ideal for sites with limited access

Designed for a shallow dig

Ready to use

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Built to last

Leak-proof design

Robust and reliable tanks

Ribbed walls for added strength

Durable polyethylene or GRP shells

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Thoughtful design

Compatible with all septic solutions

Built-in pre-filters

Lockable pedestrian access covers


What is a septic tank? 

A septic tank receives and partially treats raw wastewater from properties not connected to municipal sewers.

Rewatec septic tank range

With nominal capacities from 3,000 up to 250,000 litres, Rewatec septic tanks (formally Conder septic tanks) are ideal for virtually any application. Quick to install, simple to use, and easy to maintain, these durable solutions give you discreet and reliable performance you can trust.

Example applications

  • primary residences
  • seasonal residences
  • residential developments
  • apartment buildings
  • campsites and parks
  • office buildings
  • commercial sites
  • schools

How do our septic tanks work?

Primary treatment

Wastewater from the property runs into a main drainage pipe that flows into the septic tank. The septic tank’s job is simple: it allows wastewater to separate into three layers.

In the top layer, oils, greases, and fats float to the surface and form scum. In the bottom layer, solids settle on the bottom of the tank and form sludge. Both scum and sludge require removal by a licenced waste carrier as and when required.

Rewatec septic tank


Partially clarified liquids accumulate between the layers of scum and sludge and exit the septic tank through a pipe. An integrated effluent filter - standard in all 3,000-10,000 litre polyethylene Rewatec septic tanks, capture suspended solids that could clog system components further downstream.

Wastewater final dispersal

After primary treatment, wastewater can be piped into an advanced secondary system for additional treatment (Ecoflo, MBBR, or SBR) or the tank can be periodically emptied by a professional.

Septic tank maintenance

Protect your investment in your septic tank by having it regularly inspected by Premier Tech. 

The frequency of service depends on the size of your tank, the amount of wastewater your property generates, and the environmental regulations in your area. It is best to speak with us to determine servicing that is right for you.

We stand by our products

For over 50 years, we have proudly developed sustainable and long-lasting products that make a real difference for our customers, our professional partners, and, above all, our planet.

Our experience in the industry allows us to give you a complete warranty for septic systems.

Our Rewatec septic tank warranty includes:

  • 10-year shell and construction (polyethylene)
  • 20-year shell and construction (GRP)

Visit our office 

​​​​​​At Premier Tech we strive to fully meet the requirements of our professional partners. If you require product functionality guidance or more detailed information for installations, we can provide a solution to meet your needs. 

Contact us to find out more

Available products

We offer a complete range of septic tanks to meet your needs from 3,000 litres to 250,000 litres. Wherever your site, whatever the regulations, we have the right product to transform any wastewater treatment challenge into a tailor-made solution.


Free quote

We are here to help. Request a quote today and our team of experts will be in touch. 

Request a quote