Decentralised greywater treatment

Turning waste water into a resource

Modular Nature based greywatertreatment and reuse solutions for homes institutions and communities

  • Nature-based
  • Modular
  • Low-maintenance
  • Decentralized

From greywater to reusable water, in 5 stages

GreywaterPrimary settlingModular wetlandPolishingReuse

Greywater is not waste. It is a resource.

Using freshwater for applications that do not require potable-quality water increases unnecessary demand on freshwater resources.

Waterlogging
Unpleasant odour
Local pollution
Drainage problems
Fresh water wastage

Plus the cost of unnecessary freshwater consumption for uses that never needed drinking-quality water in the first place.

Untreated greywater flowing to a conventional drain

Untreated greywater flowing to a conventional drain

The SOAK NEXT solution

Meet the SOAK NEXT Modular Wetland System

A decentralized greywater treatment system based on Modular Vertical Flow Constructed Wetland (MVFCW) technology — engineered to work with natural biological processes rather than against them.

Stage 01

Primary settling

Greywater enters a settling chamber where heavier solids separate out before the water moves on for biological treatment.

Stage 02

Modular wetland treatment

Water passes vertically through layered media inside the Modular Vertical Flow Constructed Wetland — the core of the system.

Stage 03

Natural microbial action

Naturally occurring microbial communities within the media break down organic matter as part of the treatment process.

Stage 04

Polishing zone

A final polishing stage refines water quality further before it leaves the system.

Stage 05

Reuse

Treated greywater becomes available for suitable non-potable applications, such as landscape irrigation.

How it works

One continuous journey, from drain to reuse

GreywaterPrimary settlingWetland treatmentPolishingReuse

Primary settling

Particles slow down and settle as heavier solids separate from the flow.

Wetland

Water passes vertically through layered media inside the modular units.

Microbial treatment

Naturally occurring microbial activity within the media supports treatment.

Polishing

Water visually clears as it moves through the final treatment stage.

Reuse

Treated water can be directed toward appropriate non-potable reuse applications, subject to water quality and intended end use.

Treated water is suited to appropriate non-potable reuse. SOAK NEXT does not position this system as producing drinking water.

Why SOAK NEXT

Engineering that works with nature, not against it

Nature-based

Works with natural physical, biological and microbial treatment processes.

Modular

System capacity and configuration can adapt to site requirements.

Low energy requirement

Designed to operate without continuous electrical energy for the treatment process.

Low maintenance

No complex moving mechanical components are required in the treatment modules.

Water reuse

Creates an opportunity to recover treated greywater for suitable non-potable applications.

Decentralized

Treatment can happen close to where the wastewater is generated.

Who we serve

Built for the places greywater already flows

Residential

A single home routing bathroom and laundry water into a compact modular unit.

Technology

Built on nature. Designed with engineering.

The Modular Vertical Flow Constructed Wetland (MVFCW) combines physical, biological and ecological processes into a single engineered system.

  • Physical filtration
  • Biological treatment
  • Microbial activity
  • Plant-based ecological processes
Influent greywater
Media layer
Biological / microbial zone
Root / plant zone
Drainage & collection
Polishing outlet

Simplified cross-section — actual module dimensions vary by site design.

Capacity

Designed around your water flow

Systems are designed according to site-specific greywater generation and treatment requirements.

1,000LPD standard configuration

Larger systems can be designed as site-specific / custom configurations.

Projects

Systems at work

Photography for projects beyond ZP School is being documented and will appear here as it becomes available.

Govt ups kattaykonamPlanned

Govt ups kattaykonam

A planned 2,000 LPD system for the school, treating greywater from the hand-wash area.

Location
Trivandrum kerala
Client type
Educational institution
Capacity
2,000 LPD
Home SystemOperational

Home System

A completed 1,000 LPD system for home gardening.

Location
Kollam kerala
Client type
Home
Capacity
1,000 LPD
Zila Parishad School, MaharashtraInstalled

Zila Parishad School, Maharashtra

2500lpd system treating grey water from the toilet block of zilla parishad school jalindernagar maharashtra

Location
Jalindernagar, Maharashtra
Client type
Educational institution
Capacity
2,500 LPD

Marked placeholders will be replaced with real site photography as it's captured.

Implementation

From first visit to running system

1

Site assessment

Understanding water usage, space, and site conditions.

2

System design

Sizing and configuring the treatment system to the site.

3

Fabrication

Modules built to the finalized design specification.

4

Installation

System installed and connected on site.

5

Commissioning

System brought online and checked for correct operation.

6

Monitoring & maintenance

Ongoing checks to keep the system performing well.

Impact

Small systems. Meaningful impact.

Water conservation

Reduces freshwater drawn for uses that don't need it.

Environmental protection

Keeps untreated greywater out of local drains and soil.

Resource recovery

Turns a waste stream into water available for reuse.

Decentralized infrastructure

Treatment sited where the water is actually generated.

Nature-based treatment

Relies on biological and ecological processes over chemicals.

Maintenance

Designed for practical operation

Routine maintenance is straightforward, with no complex moving parts in the treatment modules themselves.

Settling chamber desludging is typically every 6–12 months, depending on actual solids loading at the site.

  • Inspection of treatment units
  • Checking flow distribution
  • Monitoring vegetation and media condition
  • Cleaning accessible components
  • Periodic desludging of the settling chamber

About SOAK NEXT

Building the next generation of decentralized water management

Vision

A future where wastewater is treated as a resource, not a burden.

Mission

To make decentralized, sustainable water treatment accessible through modular technology, ecological processes and practical engineering.

FAQ

Questions, answered

Have a greywater problem?

Let's turn your wastewater into a resource.

Tell us about your building, water usage and site.

Contact

Request a consultation

Tell us about your building, water usage and site — we'll get back to you to scope out a system.