Frequently Asked Questions about AES for Hotel Resorts Islands

Yes. The system relies on aerobic bacterial treatment processes, so oxygen is essential. We recommend venting on all Enviro-Septic® Technology, whether or not it is required by state codes. There are a number of ways to minimize the visual impact of vent stacks.

The house (roof) vent functions as the high vent as long as there are no restrictions or other vents between the low vent and the (roof) vent.

It is not recommended. Enviro-Septic® Technology that is installed and maintained correctly should not produce offensive odors. Filters can both mask an underlying problem and restrict the air flow through the venting to the treatment field. In general, odor issues should be investigated and the root cause(s) determined and corrected.

Yes. The low vent may be attached to the d-box and the high vent may be attached to the end of the field. If this configuration is used in cold climates, the d-box must be insulated to prevent it from freezing.

Yes. The low vent can be located at the same end of the field as the high vent, near the d-box as long as the two lines are not plumbed in together.

Grasses, native wild flowers and shallow-rooted ground covers are the best choices for vegetation over the treatment field. There should be no trees planted within 3m. of any part of the treatment field to prevent damage to the system from root infiltration. Avoid planting water loving plants and trees (willows, bamboo, etc.) and gardens for human consumption near the drain field. Also, adding too much additional soil material over the drain field could potentially suffocate the system if it is not vented.

No. The additional water from irrigation systems could “flood” the system and adversely affect its operation. For the same reason, floor and roof drains, sump pumps, gutter systems, etc. should not discharge into or near the system. Grading and surface diversions (”swales”) should be located so as to redirect storm water run-off away from the system. The ground surface over the treatment field should be “crowned” in order to prevent ponding of surface water over the treatment field.

The use of a garbage disposal adds considerably more solids to a septic system than are usually present. This typically requires a larger septic tank (or a multiple tank design) and more frequent pumping. Please inform your system designer of your intention to install a garbage disposal for this reason.

Usually the limiting factor on how deep an AES or Enviro-Septic® System can be buried is the permeability of the soil, and the depth to the seasonal high water table or some other restrictive feature. Please consult your system designer for assessment.

Driving over the Advanced Enviro-Septic treatment field is prohibited under most circumstances. Driving over an AES or Enviro-Septic® treatment field (or any leach field for that matter) can cause damage if the system was not designed for traffic bearing (H20 loading). Regardless of H20 Loading, use particular caution in the following circumstances as they may compact soils and inhibit oxygen to the system

Farm equipment/grazing animals
Construction equipment (mowing equipment is fine)
Repeated use of snowmobiles, ATV‚s, motorcycles, etc.

Gluing raised connections is highly recommended to ensure connections remain assembled during the backfill procedures.

No. The pipe will expand in warm weather and contract in cold weather. During installation the fabric will typically reach or cover part of the fitting. If the fabric falls short of reaching the fitting, it’s not cause for alarm. Installers can very easily pull or push the pipe to make it slightly longer or shorter. If a space remains between the fabric and fitting, the System Sand will bridge over exposed pipe perforations, preventing additional System Sand from entering the pipe and suspended solids from exiting the pipe.

No. After System Sand is spread between rows it is recommended that the installer straddle each row of pipe and walk heel-to-toe its entire length, ensuring that System Sand fills all void spaces beneath the AES or Enviro-Septic® pipe. Pneumatic tired equipment and/or mechancial compactors should not be used to compact System Sand, fill or fill extension areas. Mechanical compaction will damage the soil’s ability to disburse liquid and may inhibit oxygen supply to the system.

The System Sand that surrounds the AES and Enviro-Septic® pipes enhances the supply of oxygen and facilitates efficient dispersal of treated wastewater. In order for the System Sand to function optimally, it is critical that the correct type and amount of System Sand is used when constructing the System. We recommend installers to get a sieve analysis done to ensure the sand being supplied meets System Sand specifications.

Yes, however, effluent filters are not recommended by Presby Environmental, due to their tendency to cut off the essential oxygen supply (even when they are properly installed and maintained). If you are required by the state or local authority to use an effluent filter in a gravity fed system, the effluent filter selected must allow the free passage of air to ensure the proper functioning of the system. If a filter is used, follow the manufacturer’s maintenance instructions and inspect filters regularly.

The liters per day (lpd) limit for a single bed or for a combination System varies. Please contact Chankar Environmental for advice on (07) 5474 4055.

No. AES and Enviro-Septic® were thoroughly tested in Canada in order to confirm that extreme winter conditions does not have an adverse effect on the functioning of the system. In general septic systems are not prone to freezing. Bacterial activity generates heat, and the septic field is regularly dosed with warm water from the septic tank.

No. We provide training classes, free of charge, whether you just want to learn more about our system or if you are seeking certification. Classes are available online for all who are interested.

The size of a typical AES or Enviro-Septic® System varies from state to state; however, you can expect at least a 40% reduction in field size. This should also translate into lower installation costs.

If the system is designed, installed and maintained properly, there is no limit to the life expectancy of Enviro-Septic® Technology. In the event that the System malfunctions due to abuse, AES or Enviro-Septic® may be rejuvenated in as little as 72 hours, eliminating the need for a replacement.

In order to design and/or install the Advanced Enviro-Septic system you are required to complete our online training course and be a holder of appropriate occupational licences. Chankar environmental offer a free basic design and installation course online. Click here to start online course

In order to design and/or install the Advanced Enviro-Septic system you are required to complete our online training course and be a holder of appropriate occupational licences. Chankar environmental offer a free basic design and installation course online. Click here to start online course

The cost of a System depends on the specifics of the site, the system size and the particulars of your state’s approval.