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Environment Technology AES Newsletter June 2015
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Running total of AES systems installed in NZ = 65

Credit Cards

Environment Technology now accepts credit cards! – Mastercard, Visa and all Debit Cards. A 3% surcharge to cover bank fees applies. Please provide the usual details with your order which we will not keep on file.

Mystery Creek

Dick Lamb & Hazel Pearson recently took ET & AES to the Field Days in the main pavilion at Mystery Creek. “We had great foot traffic in and around our stand and we were in almost continuous discussions with people and business reps from all over New Zealand on wastewater treatment issues,” Dick says. “Most of the enthusiasm came from the realisation that there was finally a high quality secondary treatment option available based on a development of the traditional septic tank and disposal trench solution. Nearly all visitors knew AES to be a long-term, low-cost and hassle- free option.”

Hazel Pearson at Field Days

Dick Lamb talks to an interested customer at the Field Days


We have two vents available for purchase and we’d be interested to hear your preference – a $24+gst screened air inlet cap or $6.50+gst 100mm vent cowl. Let us know which you’d like for your AES systems.

Technical Drawings

We have now uploaded numerous technical drawings to our website. Drawings of elevation levels for the AES bed can be found here, along with cross sections for 1-6 rows of AES pipe, and plan views of the AES bed with various pipe numbers per rows. View Here. These do not include system extensions. These must be on the down slope side of the AES bed on a slope but can be designed on either side on the flat.

Sampling Port

Director Dick Lamb has fashioned a sampling port using a recycled 200 litre plastic drum: You can learn exactly how to make one and what it will cost at the bottom of the page here

sampling port

News of Interest

Hopefully you have seen through On-site Newz that ‘flushable wipes’ are anything but, particularly with septic tank systems. Please advise your customers of this news.

From Australia: Shutting off power to sewerage treatment systems can cost thousands. There are around 250,000 rural properties in Queensland using mechanical domestic sewerage treatment plants which require electricity to ensure ongoing, effective treatment of sewerage, even when the property is not occupied. A substantial number are rental properties.

Once a tenant vacates a rental property and instructs their electricity supplier to shut power off to the property, the mechanical pumps and blowers shut down depriving the system of air. Even as little as two days without power can cause a total breakdown of the treatment process, resulting in blocked pipes or worse still, above ground irrigation of untreated raw sewerage. The owner of the rental property may then face the cost of a service call shortly after the new tenant moves in. If they are required to replace a pump or blower the bill can over $1000 or if the land application area is clogged the cost could be in the multiple $1000’s to rectify.

Whilst no one is actually at fault, it highlights the need for owners of rental properties to be aware of the financial and health impacts of shutting off power to their onsite wastewater treatment system. A small power bill is dramatically less than the cost of repairing an onsite wastewater system and far safer for environmental and community health. This also serves as a reminder to not turn the power off to your sewage plant when you go on holidays, it could cost as much as your holiday when you get back home.

AES wastewater treatment systems are of course passive and do not require any power to maintain operation. No pumps, control boards or aerators, eliminating the need for electrical input. AES is the perfect solution for safe and cost-effective onsite wastewater management.

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