Septic tanks

Registered white Rewatec logo.

Discover the easy way to protect your property and the environment with our robust and lightweight Rewatec primary treatment solutions. 

Solution for the primary treatment of wastewater in CE marked high density polyethylene tanks (HDPE)
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Simple and robust icon
Simple and robust

High quality 100% virgin HDPE 

CE marked models 

Lids available with locking mechanism 

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Easy installation icon
Easy installation

Lightweight and easy to handle 

Ideal for areas of difficult access 

Factory-assembled

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Versatile icon
Versatile

Volumes from 1,500 to 75,000 L 

Compatible with any septic system

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High performance

Pre-filter included  

TSS reduction >83% 

BOD5 reduction >40% 

What is a septic tank?

The septic tank receives and treats domestic wastewater when residences are not connected to municipal sewage networks. 

With nominal capacities from 1,500 to 75,000 L, the Rewatec septic tanks are perfect for any application. They are quick to install and are easy to use and to maintain.  

Our septic tanks are made of rotomolded 100% virgin high density polyethylene (HDPE). The welds in some models are subject to an exhaustive quality and watertightness control to prevent any leakage problems.  

 

Examples of applications 

  • Single-family homes 
  • Apartment buildings 
  • Office buildings 
  • Schools 
  • Small communities 
  • Golf courses 

Septic tank installation. Millenium model

 

How do the Rewatec septic tanks work?

Primary treatment

Domestic wastewater flows through a sewer pipe into the septic tank. The operation of the septic tank is simple: it allows the wastewater to be separated into three layers and significantly reduces the pollution load through anaerobic digestion of bacteria.  

In the upper area, oils and greases rise and form a scum layer. In the lower area, solids settle at the bottom of the tank and form sludge. Both the scum and the sludge should be removed every two or three years by septic tank pumping experts.  

Partially clarified liquids accumulate between the layers of scum and sludge and exit the tank through a pipe. A built-in effluent pre-filter captures suspended solids that could clog the system components downstream. 

The following are the pre-filters used in our Rewatec septic tanks: 

Pre-filters PF-17
  • PF17: up to 8,000 L tanks (pre-filter with a built-in safety and cleaning system) 
PF-525
  • PF525: for 10,000 L or larger tanks (pre-filter with safety system only)

     

    Discharge options 

    After primary treatment, wastewater can seep directly into the ground, channelled into a secondary treatment system for further treatment (Ecoflo, MBBR or SBR) or, if the septic tank installed has not outlet (holding tank), it must be periodically pumped by a qualified service professional. The choice of the type of discharge is subject to the existing regulations in force in the area. 

    Treatment performance

    Performance of Rewatec Millenium septic tanks fitted with a pre-filter, for standard residential wastewater: 

    • COD reduction > 45-55% 
    • BOD5 reduction > 35-40% 
    • TSS reduction > 75-80%  

    Maintenance of the septic tank

    Premier Tech recommends that you follow the maintenance instructions according to the model installed. Protect your investment by having the septic tank regularly inspected and pumped to help increase its service life and maintain your warranty. 

    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 a local professional to determine servicing that is right for you. 

    When your service provider visits your property to inspect your system, they should: 

    • check for cracks and leaks in the tank 
    • measure the scum and sludge layers 
    • pump the septic tank, if necessary 
    • clean the effluent filter in the outlet pipe 
    • keep and update maintenance records for your system 
    • explain any areas of concern and,
    • recommend next steps

    We stand by our products

    For over 25 years we have developed sustainable and long-lasting products that make a real difference for our clients, professional partners and, in particular, our planet.

    All Rewatec septic tanks come with a five-year warranty, following the instructions for the installation and use of the system. 

    5 year warranty

     

    Available models

    We offer a model adapted to each specific need.

    Applications

    The Rewatec septic tanks can be installed together with the following Premier Tech systems

     

    Ecoflo, the sustainable solution for wastewater treatment using a natural biological filter made of coconut husk fragments
    Ecoflo

    The sustainable solution for wastewater treatment using a natural biological filter made of coconut husk fragments.

    Compact solution for domestic wastewater treatment by sequencing biological reactor (SBR)
    Sequencing batch reactor (SBR)

    Compact solution for domestic wastewater treatment by sequencing biological reactor (SBR) 

    Compact solution for wastewater treatment using a moving bed biofilm reactor (MBBR)
    Moving bed biofilm reactor (MBBR)

    Compact solution for wastewater treatment using a moving bed biofilm reactor (MBBR) 

    Compact solution for the treatment of wastewater by extended aeration
    Extended aeration

    Compact solution for the treatment of wastewater by extended aeration 

    Compact prefabricated pumping stations available in a wide range of designs, sizes, and materials
    Pumping stations

    Compact prefabricated pumping stations available in a wide range of designs, sizes, and materials. 

    Contact us

    Contact our team of experts to find out more about our sustainable solutions that help improve the environment and our planet. Together we will make a difference. 

    Contact us