Enviro Tas Wastewater Treatment System in situation 2

User Manual

EnviroTas Advanced Secondary Wastewater Treatment System User Manual

As the owner of an EnviroTas Advanced Secondary Aerated Wastewater Treatment System, you are responsible for its ongoing operation and maintenance. This User Manual will explain your responsibilities and provide valuable tips and guidelines for keeping your system healthy.

If you should require any further information please don't hesitate to contact us!

Owner's Responsibility

Pre-Commissioning

Please ensure the following items are completed prior to commissioning:

  • Your EnviroTas-AS is filled with a maximum of 5300 litres of potable water.
  • The treated effluent dispersion/irrigation area is completed, council inspected and connected to the discharge pump out line from your EnviroTas-AS. 
  • The electrical power supply is installed and connected to your EnviroTas-AS.
  • The sewage drains from your home are installed, connected to your EnviroTas-AS and council inspected.

Once these items are complete, an EnviroTas technician will attend your site and commission your EnviroTas-AS. A commissioning certificate will be provided and submitted to your local council.

As the owner of your EnviroTas-AS, you are entirely responsible for its ongoing operation and maintenance. 

It is a requirement of system accreditation and a condition of your plumbing permit that your Wastewater Treatment System is maintained and serviced regularly by an approved service provider. It is the system owners responsibility to establish a service agreement, we can help and guide you through this process. EnviroTas is an approved service provider, and we will submit service agreement proposals for your consideration as part of our documentation. EnviroTas has a team of highly qualified wastewater technicians, and we currently service over 1400 properties all over Tasmania.

It is your responsibility to ensure that free access is always available to your Wastewater Treatment System for maintenance purposes. It is also your responsibility to ensure that the treated effluent dispersion area is suitably maintained.

Please note that the existence of a service contract does not transfer the responsibility from the owner to the supplier or its agents. EnviroTas cannot accept responsibility for warranty or operation if the system is not serviced and maintained continuously after commissioning.

Once your household sewer drainage has been connected correctly to your EnviroTas-AS, it can be used for its intended purpose immediately; provided your garden area has been landscaped to the satisfaction of and signed off by your local Council. The landscaping requirements are very essential as you cannot irrigate on barren dirt. 

The entire operation of your EnviroTas-AS is automatic. Please do not make any adjustments to the air supply or pumping equipment. Should you require further information on the operation of the system, please contact the team at EnviroTas on 02 6234 7782.

Legal Requirements

Guide

In the best interests of both the homeowner and the general public, certain requirements are imposed by the regulating bodies regarding the installation of wastewater treatment systems.

The following points are provided as a guide only, please double check and confirm with your local regulating body for further information.

  • Your EnviroTas-AS is to be installed in the approximate position indicated in the plan.
  • Your EnviroTas-AS may not be used until the site has been inspected and Council considers that the effluent and sullage can be completely disposed of on the site without nuisance or likely danger to health and conforms with permit conditions.
  • No fruit or salad vegetable growing on the property shall be irrigated with the treated effluent from your EnviroTas-AS.
  • There shall be no irrigated water run-off from the allotment to the adjoining properties, public places, or reserves.
  • An owner’s manual is to be provided with the unit. 
  • A detailed service report is to be provided upon completion of each service. The date of each service shall be entered on the record sheet. A copy of this report is to be provided to the owner and the regulating authority, and also must be kept on file by the service provider.
  • The owner shall enter into a service contract with the manufacturer, distributor or their agents or a service provider approved by the local regulating authority.
  • The service contractor shall adjust each unit, its ventilation and irrigation system, when directed to do so by the Department of Health, or local regulating authority.
  • The yard or garden areas of the allotment should be turfed and/or landscaped to the satisfaction of the local regulating authority and the Department of Health before the system is used for irrigation purposes.

Detailed conditions of installation are stated on the approval (Plumbing Permit) issued by the regulating body. Please read them carefully and ask for advice should it be necessary.

If you should ever sell your property, please advise us so we can transfer the Service Contract and billing to the new property owners.

Maintenance and Servicing

Regular Scheduled Maintenance 

It is a requirement of system accreditation and a condition of your plumbing permit that your Wastewater Treatment System is maintained and serviced regularly by an approved service provider. As the system owner, it is your responsibility to establish a service agreement, however we can help and guide you through this process. Please note that failure to have regular stipulated servicing carried out could result in a breach of public health legislation and subsequent legal proceedings.

EnviroTas is an approved service provider, and we will submit a service agreement proposal for your consideration as part of our documentation. EnviroTas has a team of highly qualified wastewater technicians, and we currently service over 1400 properties all over Tasmania.

Our technicians will carry out a comprehensive service that will ensure your system is operating effectively and within the standards set by regulatory authorities, including:

  • Sight-check overall health and performance of the system.
  • Check condition of all system pipework.
  • Check system odour levels.
  • Check sludge levels in each treatment chamber.
  • Check performance of aeration diffusers and adjust as required.
  • Test/check operation of air blower, clean air filter.
  • Test/check operation of discharge submersible pump.
  • Replace spent chlorine tablets if required.
  • Measure/record dissolved oxygen levels.
  • Measure/record pH.
  • Clean irrigation filter.
  • Check condition and performance of irrigation dispersion area.

Our specialist wastewater technician will record all information on a service certificate. You will receive a copy of this certificate for your records, and we will also lodge this certificate with your local council.

 

An EnviroTas-AS with below ground dispersion requires only 2 services per annum. An EnviroTas-AS with above ground irrigation will require 4 services per annum, this is a legal requirement as defined under AS 1546.3:2017.

Depending on individual household usage, it will be necessary to periodically remove the solids from the EnviroTas-AS tank. This service must be carried out by any person or organisation approved by the Health Department. Desludging is required every 5 years by accreditation. Your EnviroTas specialist wastewater technician will advise you when this is necessary for your system and will provide you with a written quotation. 

Keeping Your System Healthy

General Tips

To ensure your EnviroTas-AS is operating effectively and within the standards set by regulatory bodies, it is necessary to avoid certain products entering the system.

Your treatment system relies on bacteria for treatment, so any product used to kill bacteria is detrimental to system efficiency, can cause bad odours and damage the workings of the system. The following tips are helpful in ensuring your EnviroTas-AS operates effectively and trouble-free:

  • Use cleaning products that are bio-degradable and low phosphorus. 
  • Don’t allow the following items down any drain connected to your treatment system:
    • Dyes or colourings.
    • Strong caustic, alkalis, oils, acids, bleaches, disinfectants, or chemical detergents.
    • Bio-degradable detergents that contain disinfectants (e.g. chlorine bleach), benzine or phosphates. Benzine converts to carbolic acid which is a strong disinfectant.
    • Antibiotics.
    • Newspapers, paper towels, sanitary items, wipes (even ‘flushable’ wipes) etc.
  • Be aware most products advertised as clean-green and septic-friendly are often based on natural oils (eg Eucalyptus/Tea Tree) and these can decrease the effectiveness of your system.
  • If possible, spread your washing loads over a week, e.g. 1 or 2 loads per day.
  • Adhere to recommended dosages of cleaning and wash products.
  • Don’t exceed the maximum design load or subject the system to hydraulic shock loads (use of washing machines, shower/emptying of baths at the same time).
  • Don’t switch off power to your system.
  • If the alarm is activated, eliminate the problem as soon as possible.
  • Avoid the use of garbage disposal units in sinks.
  • Avoid pouring quantities of oil/fats, alcohol, dairy products or fruit juice into the drains to the system.

If you need to use any products not permitted to enter your EnviroTas-AS, it is best to do this in a bucket and discard the contents appropriately after use. 

The washing machine and dishwasher are generally the biggest users of water in a house, so you need to ensure you are using the correct products for these washes. It is difficult to specifically label which washing and cleaning products will be safe for Wastewater Treatment System systems as the product ingredients are continually evolving and changing. 

As a rule of thumb, liquid products are more likely to be safe for your system than powder or tablet form. Avoid anything antibacterial and look for products that are phosphate-free or low-phosphate. Most products marked biodegradable/green etc. are safe for use in your EnviroTas-AS, however some plant-based cleaners are powerful antibiotics and will cause your system not to work effectively.

Moderation is key with all cleaning products. Your EnviroTas-AS will cope with a small amount of incorrect products but to keep everything working as required please follow our suggestions. Your EnviroTas maintenance technician will advise if there are any incompatible products affecting the operation and biological condition of your system. 

 

Washing Powders, Liquids and Softeners

Avoid stain removal and eucalyptus. Look for low phosphorus, low sodium and low sulphur products. Incompatible soakers can be used in a bucket and then disposed of appropriately when finished. 

 

Dishwashing

Avoid dishwashing liquids that promote being antibacterial, go for products that are non-toxic, non-chlorine based and biodegradable. 

 

Surface, Bathroom, & Floor Cleaners

Look for environmentally friendly and biodegradable products. Most cream cleaners are suitable. Toilet fresheners are not recommended. Avoid any antibacterial, bleach or ammonia-based cleaners. Use hot water and detergents on floors. Alternative non-product cleaners are recommended such as Enjo, Norwex etc.

 

Personal/Pet Hygiene

Anything you can use on the human body is generally safe for your system in small doses (except strong antibacterial handwash in excessive quantities). Take care that no pet wash runoff, including flea products etc, drains into your system.

Landscaping Around EnviroTas-AS & Irrigation

Water Catchment

Take care not to create a water catchment area around the EnviroTas-AS as this can cause fusion of your air pump during periods of heavy rain. Avoid this problem by creating channels to take rainwater away from the vicinity of your Wastewater Treatment System.

This list is only intended as a guide and local knowledge should be sought regarding your local area. This is a list of Tasmanian natives that generally tolerate wet soils and extra nutrients. Thanks and credits to Plants of Tasmania Nursery at Ridgeway for this compilation.

TREESAPPROX HEIGHT
Swamp Paper-Bark4-6m
Woolly Tea-tree5m
Cape Pillar She Oak+/-5m
Cheese-wood5m
  
SHRUBSAPPROX HEIGHT
Rices Wattle3-5m
Yellow Bottlebrush2-5m
South Esk Pine3m
Shiny Tea Tree2m
River Tea Tree2.5m
Common Tea Tree2m
Yellow Paperbark3m
Swamp Melaleuca2-3m
Scented Paperbark2-3m
  
SMALL SHRUBS AND TUFTIESAPPROX HEIGHT
Tassal Cordrush1.2m
Mountain Cordrush.5m
Tassel Sedge1m
Lime Bottle Brush2m
Slender Honey Myrtle2m
Tasman Flax Lily.6m
Button Grass.8m