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

What is a septic tank?

A septic tank is an underground system that receives and partially treats raw wastewater from domestic or commercial properties not connected to municipal sewers. They are typically the most simple and most economical form of onsite wastewater treatment.

Rewatec septic tank range

With nominal capacities from 3,000 up to 84,000 litres, our Rewatec septic tanks (formerly Conder septic tanks) are ideal for virtually any application. Quick to install, simple to use, and easy to maintain, these durable solutions give you a discreet and reliable performance you can trust.

Our septic tanks are also CE and UKCA marked having been fully tested and certified to EN12566-1.

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)
  • 25 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

Technical information

Our standard range of polyethylene septic tanks are available in 3,000 to 10,000 L capacities, whilst our glass reinforced plastic (GRP) septic tanks are available in 14,000 to 84,000 L capacities. If you have a need for a larger septic tank, please contact us for a bespoke solution that meets your requirements.

Polyethylene septic tanks

Rewatec septic tank specification table


GRP septic tanks

Rewatec GRP septic tank specification table

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.


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Free quote

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