BioCycle 8200 Ecolution User manual

BioCycle Ltd
15 Mexted Place, Hamilton 3216
0800 246 292
[email protected]
www.biocycle.nz
BioCycle
8200 Ecolution
INSTALLATION
GUIDE
Published 5th December 2019

BioCycle Ltd
15 Mexted Place, Hamilton 3216
0800 246 292
[email protected]
www.biocycle.nz
Thank you for purchasing a BioCycle 8200 Ecolution Secondary Aerated Wastewater Treatment System.
At BioCycle Limited, we strive to manufacture and supply high quality, fit-for-purpose wastewater
management tanks and supporting products. While we always check over our products for Quality
Assurance prior to dispatch, it is inevitable that sometimes a component may get overlooked or even receive
damage during transit. You should check over your new BioCycle tank thoroughly upon receipt and if you
find anything not as it should be, please notify us immediately and we’ll ensure it gets remedied without
delay.
The following Installation Guide is intended to provide a basic overview for practical installation of the
BioCycle tank. However, only trained and experienced Registered Drainlayers should install any wastewater
treatment tank and their own knowledge of the New Zealand Building Code, New Zealand Standards
(AS/NZS) and industry Codes of Practise Guides should ensure each tank is installed correctly and safely.
In addition, the location of the tank and effluent dispersal field (PCDI, LPED or other discharge design) should
be laid as precisely as possible in line with the detailed design provided by a CPEng or SQP design author for
each specific property, and as approved for Building Consent by the relevant local Building Authority.

BioCycle Ltd
15 Mexted Place, Hamilton 3216
0800 246 292
[email protected]
www.biocycle.nz
The BioCycle 8200 Ecolution pre-cast concrete tank weighs approximately 8,200Kg (dry) and is 2500mm
diameter x 2310mm High.
There are 4 x Reid Swiftlift points on the BioCycle tank. At the time of publication these are each 2.5tonne
rated. They are clearly marked as lifting points. A spreader bar should be used by the crane operator when
lifting the tank.
Only a very large capacity truck-mounted crane should be used for delivery to site and installation into the
excavated hole. The truck with tank on board could weigh up to 24tonne in total and is as much as 4.2metres
high.
Overhead powerlines, tree branches or other obstructions must be removed. If the driveway is not easily
negotiated and stable, many Hiab truck operators will decline installation on arrival, so please ensure all
access work is done prior to delivery. Generally, the back wheels of the Hiab truck must be within four
metres of the hole to lift the tank in safely. It is the Drainlayer’s responsibility to ensure a clear, level & stable
driveway providing access for the truck right up to the hole.

BioCycle Ltd
15 Mexted Place, Hamilton 3216
0800 246 292
[email protected]
www.biocycle.nz
Please note that BioCycle Limited advises against attempting to use a large excavator or other hydraulic
powered machine to lift and manoeuvre the BioCycle tank. If a large excavator is the only option for
installation, a minimum 30tonne machine should be used.
WARNING: No BioCycle tank is manufactured to withstand excessive weight loading, such as that of a vehicle
driving over the top. Tanks should never be located too close to driveways where there is heightened risk of
vehicular loading.
For hole excavation, BioCycle Ltd recommend an excavator size of no less than 3tonne capacity to ensure
adequate reach and speed of operation.
The hole for BioCycle location should only be excavated on the day of installation. This ensures minimal risk
of water table or adverse weather filling the hole and/or subsequent collapse of the hole sides. The digger
should be on site and readily available during delivery in case of any oversights, but also to backfill the hole
immediately after tank installation.
If ground water table is high, the hole should be dewatered using appropriate pumping equipment to ensure
proper bedding of the tank.
Hole excavation should measure a minimum of 3.0Metres square, by 2.4metres deep. The base of hole
should be level and firm. Wherever loose or rocky base is present, a minimum 50mm thick bed of fine
aggregate (sand, pea metal or GAP7) should be evenly spread as a settlement platform for the tank.
Sewer pipe from the dwelling should be 100mm DWV type and fall at least 1:60 from the dwelling to BioCycle
tank. Care should be taken to communicate with the subfloor plumbing contractor for each property prior
to them laying their pipes. Ensuring they understand the importance of laying waste pipes with
consideration given to tank location will save unnecessary cost and complication. If waste pipes are located
too deep for standard BioCycle tank installation, turret risers will be needed (at extra cost) to raise access
lids and electrical components above final ground level. The maximum additional riser height allowable is
500mm.
Including lid turrets and a maximum 500mm riser installation, the maximum soil cover over tank lid is not
to exceed 600mm under any circumstances. Warranty is void if your installation is found to be in breach.
When burying a BioCycle tank deeper than standard, it may be necessary to bench the sidewalls of the hole
to reduce risk of collapse and to enable deeper reach for the digger. Extreme care should be taken and fall
prevention measures put in place around the excavated site to mitigate accidental falls and injury.

BioCycle Ltd
15 Mexted Place, Hamilton 3216
0800 246 292
[email protected]
www.biocycle.nz
During backfilling, shaping of topsoil should be undertaken to make certain that stormwater cannot gravitate
and collect on top of or around the BioCycle tank. It may be necessary to cut swale drains nearby to ensure
surface water runoff away from tank location. Backfill soil should be free of large rocks and air voids should
also be avoided.
Immediately following installation and backfilling, a minimum of 5,000Litres of water should be introduced,
to fill both the Primary chamber and Aeration chamber. This ensures the tank won’t float during rain.
Care should be taken to ensure gully traps are installed above surface water collection areas around the
dwelling, as no stormwater should be allowed to enter sewer drains or the BioCycle tank, under any
circumstances.
Electrical Connection should only be undertaken by a registered electrician, in a methodology compliant
with AS/NZS 3000. An electrical wiring diagram is supplied with each tank, located inside the Blower Box
with the Alarm Plate. If this diagram is lost, please visit our website at www.biocycle.nz/page/technical-
documents/
At the time of publication, the BioCycle 8200 Ecolution utilises a simple electrical control unit located inside
the Blower Box, which has 2 x 10amp circuit breakers installed at the box (one for each pump socket). A
2.5mmTPS (2-core + Earth) cable should be used to connect the system with a 20amp circuit breaker
installed at the dwelling distribution board. A 2.5 TPS cable is also needed as alarm plate power supply,
running from BioCycle tank back to the dwelling where Alarm Plate is to be located on an interior wall.
Please note: Electrical conduit MUST BE SEALED to ensure no rain, stormwater or ground water can access
the conduit, causing water to enter the electrical control box. Failure to ensure this will result in full repair
costs to the electrical contractor.
Commissioning of the BioCycle 8200 Ecolution system should only be undertaken by a trained BioCycle
installer or accredited BioCycle Service Agent.
There are critical valve settings and other tests which need to be completed by only trained persons. If your
system is not commissioned by a suitably trained person, the tank may flood, voiding warranty.
The warranty (see Homeowner Manual) period begins from the date printed on your Commissioning
Certificate.
A Commissioning Certificate should be completed and delivered to the new Homeowner, along with a
completed Service Agreement signed by both Service Agent and Homeowner (these documents are
available from BioCycle Limited on request. Both completed documents should be supplied along with the
Drainlayer’s “As Laid” plan to Council for Code Compliance Certification.