Give water another use.
Follow water from a working site, through treatment, into another useful role.
Water routeCleaning residualsSelect a point to explore

Through the wall.
Into the hollow center.
This outside-in membrane study opens one fiber so the route is visible. Blue follows water through the wall region and upward through its hollow center. Amber material remains outside.
- Outside the fiber
- Suspended material is shown around the membrane.
- Across the wall
- The cutaway makes the path into one fiber visible.
- Within the center
- Water collects in the hollow interior and moves along it.
A membrane stage is part of the treatment conversation. The source, dissolved substances and the receiving use still determine what else the project needs.
Bring the source and the use into the planGood reuse starts
with a clear picture.
One site. Many connections.
Rill helps property and operations teams explore non-potable water reuse. We bring the source, the proposed application and the practical questions into one project brief.
We look at daily demand, source water and the space available before recommending a system.
Our way of working
A purpose for
every project.
The best place to begin is with the job the recovered water needs to do.

A system is only
part of the story.
Storage, seasonal demand, site space and the people who will operate the system belong in the conversation too.
We work through those connections before the project becomes a specification.
See what goes into a planDifferent sources.
Different questions.
Process water and rainfall have different characteristics. Describe each source separately when planning reuse.
Follow the water through the work.
Identify the process that generates it, how its quality varies and when it is available. Existing operating records can help establish the starting point.
Understanding process sourcesLook at the building as a whole.
Different building sources have different characteristics. Map where water is generated and where a non-potable use might be possible.
Explore building reuseWork with the seasons.
Rainfall does not follow the same schedule as demand. The collection area, storage space and intended use all affect a project’s potential.
Understanding rainfall sourcesMake the next
decision clearer.
Find the starting point.
Describe the source, the site and the intended use. Bring the information you have and identify what is missing.
Look at the whole project.
Consider water quality, demand, physical space, approvals and ongoing operation together.
Agree on the next step.
Set out the questions to resolve, the people to involve and the information needed for the next decision.