Bach and cabin wastewater package
WCTNZ® | EcoLet™ 25a Zero-Discharge Bach Wastewater Package
A smaller bach and cabin wastewater package built around the EcoLet™ 25a for customers wanting an electrically assisted, self-contained composting toilet with a zero-discharge toilet-waste pathway.
The package includes a small grease-management pathway and a selected GreyFlow™ PS-AG greywater system so the main toilet-waste and greywater technologies are considered together.
Toilet systemEcoLet™ 25a
Self-contained
Grease trapSmall Passway™
Kitchen protection
GreywaterPS-AG range
Site-selected
UseSmall bach
Cabin / getaway
Grouped package selection
Build the package from the products below
This EcoLet™ 25a bach wastewater package is designed for smaller bach, cabin and off-grid accommodation projects where the toilet-waste pathway needs to be contained separately from the greywater pathway.
This is a situation-based grouped package rather than a fixed discount bundle. Select the required products and options below so the final package matches the site, use level and installation pathway.
System pathway
What this package is designed to cover
Toilet-waste pathway
EcoLet™ 25a self-contained composting toilet system for a zero-discharge toilet-waste pathway, subject to correct model selection, use level and installation.
Grease management
Small Passway™ grease trap / grease interceptor for kitchen wastewater protection where kitchen wastewater is included in the site pathway.
Greywater pathway
GreyFlow™ PS-AG range selected according to the site, including available fall, pumping head, household loading and land-application design.
Land application
GreyFlow™ dripper field components selected where suitable for the site and local requirements.
Package components
Recommended core products to select below
EcoLet™ 25a
Electrically assisted self-contained composting toilet system for smaller bach and cabin use within the selected model rating.
Small Passway™ grease trap
Small grease separation unit for kitchen-line protection before wastewater enters the selected greywater or wastewater pathway.
GreyFlow™ PS-AG range
Select PS-AG-M1, PS-AG-M3 or PS-AG-M4 according to flow, head, terrain and site layout. Automatic PS-AG models should only be used where a suitable backflush discharge pathway is available.
GreyFlow™ dripper field
Subsurface land-application pathway for suitable greywater, subject to site levels, soil conditions and council requirements.
Why these products are grouped
A practical starting point for the situation
- Separates toilet waste from shower, bathroom, laundry and kitchen wastewater planning.
- Uses the EcoLet™ 25a for a smaller electrically assisted toilet-waste pathway.
- Includes the small grease trap and PS-AG greywater technology in the package logic rather than leaving the customer to guess the pathway.
- Allows the PS-AG model to be selected according to the site rather than forcing a single pump size.
Site and consent context
Final suitability remains project-specific
Zero-discharge wording: The EcoLet™ component provides the toilet-waste pathway. Shower, bathroom, laundry and kitchen wastewater still require a separate greywater, grease-management or wastewater pathway suitable for the site.
NZ Building Code and council review: WCTNZ® can provide product information, technical documentation and consent-support information for customers, designers, builders, plumbers and wastewater professionals reviewing a bach or cabin wastewater pathway.
