Handle Rinse Water at the Source

Turn your wastewater into opportunity 

Construction site

Rinse Water? Handled. Fast. Clean. On your terms.

Paint, plaster, and brickwork ... they all leave rinse water behind. And too often, that waste ends up where it shouldn't, damaging the environment or triggering compliance issues. 

CWG takes care of it. Our on-site rinse units let your crew clean up fast and safe. We capture the wastewater, haul it off, and give you the paperwork to prove it. No transport. No fines. No loose ends. Just done.


For who?

Want a CWG deposit unit? Let's make it happen. We've got options, you've got waste. Drop us a line or book a call, we'll sort out what works best for your site. No fluff, just solutions.


For Public Projects and Tenders


Meet strict compliance standards and provide documentation for tenders.


For Construction Companies


Set up compliant rinse water collection directly on site.


For Onsite Painting, Plasterers and bricklayers Crews

Let workers clean tools on-site without taking waste elsewhere.

Our solution: built for the construction site

Construction sites move fast. Deadlines are tight. Compliance is real. Logistics? Keep 'em simple. That's why CWG's mobile collection units are made for the chaos and built to perform.

Contractor, painter, plasterer, bricklayer, whatever your role, we help you manage rinse water right there on-site. No waiting, no transport drama, no environmental mess.

*each stream of rinse water is collected separately to preserve traceability and quality, allowing in to be repurposed as raw material by industry partners.

Mobile Units

Drop-off and pickup happen right at your site. No hauling, no hassle.

Closed-Loop System

Purified, reused, or safely discharged. No shortcuts.

Certified Disposal

From trowels to rollers to spatulas, it's all logged and certified.

Supports Daily Cleanup

No waiting, no downtime. Just faster, cleaner crews.

On-site collection options

Tailored Collection Systems for Every Site

We provide compact systems designed to match your team size and site duration.


Tank + Tool Washing Station

Integrated cleaning unit for brushes/rollers - perfect for jobsite hygiene and speed.

More info


KCA/KGA-box (250L)

Durable and compact, ideal for small/medium sites or daily cleaning tasks.

More info


Deposit Tank (900L)

High-capacity sealed unit for large crews or multi-week projects.

More info

Why it pays to do it right?

Reasons why construction sites choose CWG

Stay compliant

Certified disposal that keeps you ahead of fines, shutdowns, and surprise inspections. No stress, no setbacks, just sorted.

Protect the environment

Stop rinse water full of PFAS, microplastics and paint waste from hitting the ground or drains. No leaks, no pollution, just clean results.

Streamline crew cleanup

Cut the end-of-day drag with on-site rinse drop-off. Faster tool cleaning, smoother wrap-up, no wasted time.


Prevent blockages & site mess 

Collect rinse water at the source and stop clogged pipes and filthy discharge zones before they start.

Boost your site reputation 

Show you're built different. Clean, compliant practices that impress clients, win over inspectors and give you the edge in public tenders.

Lower your CO₂ Impact

Cut transport and burn emissions. CWG recycles plastic buckets and puts recovered materials back to work.


Ready to manage paint waste properly on-site?