Septic Tank Design & Installation

Septic tanks for domestic, commercial properties & dairy sheds

J G Smaill Ltd are one of only a few Dunedin City Council approved septic tank design and installation companies in Dunedin. Each septic tank design and installation project is individually designed and quoted to be fit for the purpose whether that be a domestic dwelling or a dairy shed. All installations require council approval before installing can begin. The design of a septic tank installation is done to match the demand, area for disposal and the land quality. Design is also based on access to the site, for example a narrow driveway. Septic tanks for dairy sheds are a simple design and most installations are very cost effective.

Council approval for septic tank design

J G Smaill Ltd will take care of the full design and installation process of your septic tank including applying to local council for approval. We have experience working to many council's standards including Dunedin City Council, Clutha District Council, and Waitaki District Council.

How big should your septic tank be?

An undersized, poorly designed or under-maintained system may not adequately cope with your household's wastewater. It is the owner’s responsibility to ensure on-site sewage systems are maintained and operating correctly to avoid endangering human health and the environment.
Some recommend 165 litres of water per person, per day, but we see this as a minimum. We recommend to base tank capacity at a usage of 180-200 litres per person, per day to ensure the tank size is adequate.

An on-site sewage system can deal with all your black and grey water (internal link to Blackwater and greywater). The systems require correct design, installation and regular maintenance to dispose of wastewater from your home safely. Poor design, installation or maintenance may result in the system polluting the environment, and putting your family's and your neighbours’ health at risk.

Septic tanks are the most common way that rural homeowners across Otago and the Waitaki treat their wastewater. Whether it is for domestic or commercial (ie dairy industry) use.

Find out more

Find out more about septic tanks including what septic tanks J G Smaill Ltd offer, the process of getting a septic tank and how septic tanks work and how to spot septic tank failure and living with a septic tank.

Septic tanks J G Smaill Ltd offer

What is the process for getting a septic tank?

How do septic tanks work?

How to care for your septic tank and spot septic tank failure

12 Waverley Street, Dunedin 9012 Phone (03) 489 1802
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