WHAT TO CONSIDER IN CHOOSING A SYSTEM

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1 WHAT TO CONSIDER IN CHOOSING A SYSTEM Reflections Comparison Price Include engineering Plan & Report for local council Include excavation and installation of: - Septic Tank - Treatment Plant - Irrigation Service Engineering report provided within 3 days Supplier s staff maintain system Council approval guaranteed Performance Is the system passive and therefore has least noise or smell and has lower electricity and maintenance costs? Can the system be idle and unused for long periods while you are away without causing any problems? Can the system cope with big changes in volume of water? Will the system remove 97% + of suspended solids & BOD (Biological Oxygen Demand) of typical household effluent? Wastewater Solutions That Work P O Box 168, Waimauku, Auckland 1250, New Zealand Phone: Head Office South Auckland: Fax: info@septic.co.nz

2 HOW THE REFLECTION ISF WORKS 1. Primary Treatment All household wastewater is directed to the one house drain which leads to a large capacity primary settling chamber. In this chamber, naturally occurring bacteria start the treatment process by breaking down the settled solids through anaerobic digestion. Fats and other light matter float to the surface and form a scum. The liquid wastewater then passes through a special effluent filter which is designed to retain solid material in the settling chamber. With a reduction in organic loading of approximately 50% of the wastewater is now ready to be pumped onto a buried intermittent sand filter. By careful float switch control a measured amount is dosed at regular intervals throughout the day. 2. Secondary Treatment Unlike other secondary treatment systems the REFLECTION ISF SYSTEM does not rely on artificial media materials or the use of costly mechanical aerators, diffusers or blowers. A carefully constructed and totally self contained buried Intermittent Sand Filter provides secondary treatment and polishing of the effluent in a completely natural way. The ISF utilizes the latest advances in sand grading technology and is designed on the engineering principle of the Long Term Acceptance Rate to ensure trouble free operation for the life of the system. Wastewater dosed from the primary pump is spread evenly over a layer of clean crushed rock or scoria at the top of the buried ISF and allowed to percolate slowly down through the various layers of specially graded sand and rock. Natural processes of Physical, Chemical and Biological activity occur within the ISF to remove organic material and dramatically reduce the numbers of harmful bacteria, pathogens and viruses. At the base of the fully lined ISF the renovated water is collected and drained to the irrigation pump chamber ready for re-use on your lawn, garden or landscaped area. Reuse that is, without the need to add chlorine, or provide expensive ultraviolet or ozone treatment. 3. Irrigation By producing a renovated water with very low levels of suspended solids, Biological oxygen demand and Faecal Coliforms we are able to move away from the standard trench or bed system of disposal. Using pressure compensated dripper irrigation line buried in the upper topsoil layer the renovated water can be utilised as a resource to irrigate your property and enhance its value. A great deal of flexibility in lay out of the dripper lines is possible and with manual flush valves their reliability is unmatched by any other systems.

3 4. Installation Care and attention to detail are of paramount importance in the construction of any wastewater treatment system. REFLECTION TREATMENT SYSTEMS LTD takes full responsibility for every installation. We use only highly experienced and fully trained drainage and pump professionals who install only under our direct supervision. This ensures that not only is each system constructed to our very high standards, it also takes the responsibility of organizing drain layers, plumbers, earthmovers and irrigation specialists off the client. With the appropriate organisation it is possible to complete an installation in one day. 5. Technical Information The REFLECTION ISF SYSTEM can produce (without the addition of any chlorine or other disinfection methods) an average effluent quality of: Suspended Solids < 5ppm BOD5 < 5ppm 6. Sizing of Systems The design of any effluent treatment and disposal system is dependant on many factors including: Design wastewater usage Topography Soil Types Final disposal requirements We offer an extensive range of Septic Tank and Pump Chamber sizes and configurations for both single pass Intermittent Sand Filters and Re-circulating Sand Filters. REFLECTION TREATMENT SYSTEMS LTD provide a full design service or can provide assistance to your nominated engineer. For larger commercial applications the REFLECTION ISF is ideal and can be sized to accommodate virtually any design loading requirements. 7. Maintenance The two most common reasons that Wastewater Treatment Systems fail is poor installation and lack of maintenance. We have previously addressed the installation side. The passive nature of the REFLECTION ISF SYSTEM means that little maintenance is required however to ensure the continued reliable operation of the system, REFLECTION TREATMENT SYSTEMS LTD will enter into a Maintenance Agreement. For a small fee, a thorough inspection of each system will be carried out, usually six monthly Pumps will be checked and all pipe work flushed to remove any build up of biological material. A report will be provided to the owner outlining any remedial work which may be necessary. 8. Guarantee Due to the unique design and provided that the system is installed by REFLECTION TREATMENT SYSTEMS LTD and maintained in accordance with our recommendations, we guarantee the REFLECTION ISF will continue to produce a quality effluent for at least five years.

4 The two pumps used in the system carry a manufacturers warranty of 24 months and will be repaired or replaced at no charge in the unlikely event of a pump malfunction during their warranty period. 9. Cost The cost of each system is directly related to the design wastewater usage, access, site constraints and irrigation requirements eg: A three or four bedroom dwelling will require a smaller system than a combined five bedroom dwelling incorporating a minor household unit. REFLECTION TREATMENT SYSTEMS LTD will individually design each system to suit your specific buildings requirements. This will ensure that your costs are kept to an absolute minimum and that very little disruption to the land is carried out during construction. For a standard installation REFLECTION TREATMENT SYSTEMS LTD will provide: A three compartment tank incorporating primary settling and two pump chambers 2 pumps A buried Re-circulating Intermittent Sand Filter of a minimum 10m² Raam drip irrigation, supply line, manifold and manual flush valves Power pillar on tank, alarm light and control box 10. The Company and Our Capability REFLECTION TREATMENT SYSTEMS LTD was established by an Environmental Health Professional with over 18 years experience in the field of on-site wastewater treatment and disposal in New Zealand and Australia. Having served on International Standards Committees we have built up an association with some of Australia s leading Engineers, Soil Scientists, Academics and Manufacturers and can offer a full range of services to our clients: Feasibility reports Site evaluation reports Design and construction Liaison with Local and Regional Councils Maintenance Upgrading of existing systems

5 Sand Filter 19 Inlet pipe from house drains Air Vent (Mushroom) Septic Tank. This stores waste for about 3 days where the following happens: - Sludge sinks to bottom - Fats, lint, light materials float to surface - Bacteria process the organic components of the waste. These type of bacteria live without oxygen Solids filter fitted in discharge pipe to retain solids in septic tank Filter dosing chamber. The level in here slowly rises as liquid is discharged from the septic tank until the top float switch (7) turns the pump (6) on Sand filter dosing pump sends a dose of effluent to the sand filter distribution pipes (10). The pump only pumps from high to low over a few minutes and then turns off. The electricity cost is very low. As low as $6 per year Dosing tank high level float switch Dosing tank low level float switch Sand filter dosing pipe Sand filter distribution pipes Sand. This is specially sized sand. Biological slimes attach to the sand surface. Bacteria live in these slimes (which use air to live) and feed on the remaining organic m aterial in the effluent. Each dose thinly coats the sand surfaces. As it trickles down through the sand it draws air (through the topsoil on top on the sand filter) into the sand filter. Natural, passive aerobic treatment occurs in the sand filter. This is called secondary treatment. The sand filter is built into the ground, where all liquids are contained by a plastic liner (19) Treated (polished) effluent is collected in the base of the sand filter in a slotted discharge pipe which directs the clear, odorless liquid to the treated effluent chamber (14) Treated effluent pipe from sand filter to treated effluent chamber (14) Treated effluent chamber is where the treated effluent accumulates. The level of liquid slowly rises until the top float switch (16) turns the pump (15) on. The pump empties the chamber down to the lower float switch level (17) and turns off and stays off until the top float switch turns the pump on again. Electricity use is very low. As low as $6 per year Treated effluent discharge pump. This pumps to the disposal field. The pump cannot be heard as it is underground in a concrete tank Top float switch, treated effluent chamber Bottom float switch, treated effluent chamber Access riser and lids. These are sealed pipes allowing access for inspection and for septic tank trucks to pump out. By having the access just above ground and sealed to the tank, ground water is excluded from the treatment process. These are child and animal proof Sand filter liner which retains all liquids inside the sand filter Air breather pipe which aids the provision of air to the bacteria in the sand filter Disposal field. Effluent is thinly spread over a large area of soil. Drippers are evenly spaced in the irrigation pipes and they discharge the treated effluent into the topsoil. This water is an asset and can potentially be used to water the garden. The disposal field is the largest component of the waste water system. It can be incorporated within your lawn, existing or new garden, even native bush area Control box and warning light. This controls the pumps operation. If the level in a pump chamber gets too high, the alarm light will come on. This is a signal that either a pump has failed or that a large influx of water into the system has occurred (e.g. multiple loads of washing). If required, this can be placed on the side of your house, garden or deck

6 ARE YOU INTERESTED IN SAVING MONEY? Passive, naturally aerated sand filters cost less to run. Compared to forced aeration package plants, Reflection Sand Filters will save: Power Cost Maintenance Cost Pump Out Cost Power Cost Reflection Sand Filters have two small pumps which only pump for 15 to 20 minutes per day each, costing approx $12 per year (2 pumps x 0.4 Kw x 0.25 hours per day x 365 days per year x $0.16 per Kw per hour = $12 per year - approx). Natural aeration of the Sand Filter means no expensive, continually running aerator blower. The cost of running a 100w blower 24 hours per day every day is around $140 per year.you save $130 per year (0.1 Kw x 25 hours per day x 365 days per year x $0.16 per Kw per hour = $140 per year). Maintenance Cost A typical aerator blower will last three years and cost $ to have replaced. There is no aerator in Reflection s Sand Filter to replace.you save $180 per year. Pump Out Cost Forced aeration plants build up sludge which requires pumping out, an average once every three years costing $ you save $80 per year. In total, annual running cost saved is $390 per year.