Fine solids that pass conventional clarification
Colloidal and sub-micron loads drive turbidity, foul membranes, and shorten ion-exchange and carbon life.
Upstream pretreatment for the system you already run.
Clean the source. Keep your system.
Flotration's patent-pending CAST technology uses capillary action and hydrodynamic cavitation — — to pull out suspended solids, oils, and organics, and turn a share of your dissolved load into solids we can remove too. Independent third-party bench testing showed more than 8× longer ion exchange run life before breakthrough when CAST ran ahead of IX. No chemicals, no membranes, no added power.
Capillary Action
Separation Technology
We don’t tear out. We tee in.
Each module up to 200 GPM. Proven on your water in a paid pilot before you scale.
Start client intakeEstimate savings (ROI)How CAST connectsHow we work: prove it, don't tear out, share the savings. Our mission
Same module · scale in parallel
Building block · not a ceiling
200 GPM per module — scale by adding units
Parallel banks for higher flow. Same CAST module, repeated.
CAST pretreats ahead of the system you already run — capillary action and hydrodynamic cavitation remove suspended solids, oils, and organics, and convert a reactive share of dissolved load into solids that can be separated. No chemicals, no added power. Proven on your water in a paid pilot. Patent pending.
Advisors · testing · SBIR
Strategic advisor
Independent testing
Formerly ECT2 · Formerly ECT2. Bench & field results for CAST pretreatment. View results
SBIR Phase I
U.S. Air Force · PFAS/PFOS
Pilot-first·Water as a service·Per module 20–200 GPM · scale in parallel
The problem
The hardest water is rarely the bulk solids
Fine suspended solids, oils, and organics — the constituents of concern that conventional trains struggle to take out economically — drive most of the cost and risk.
Downstream assets run hot and fail early
IX, GAC, UF/RO, and other trains absorb the cost of poor pretreatment — more regenerations, more cleanings, more downtime.
CapEx-heavy “build a bigger plant” defaults
Operators are pushed toward expansion projects when the smarter move is often better water quality upstream.
Reuse and discharge targets keep rising
Produced water, PFAS-impacted streams, and municipal reuse need reliable polish without reinventing the plant.
The solution
Capillary Action Separation Technology
Pretreatment that makes every train downstream work better
CAST uses capillary action separation to strip fine suspended solids, oils, and organics from challenging source water before it hits clarification, membranes, ion exchange, or carbon. You keep your plant — and give it cleaner water to process.
- Modular 20–200 GPM per module; parallel banks for any higher plant flow
- Installed ahead of existing treatment — additive, not rip-and-replace
- Delivered as a service (lease + usage), pilot-first
- Documented removal on your actual stream
- CAST is patent pending
Single CAST module (stand shown for scale) — up to 200 GPM each; three ship on a 48×40 in pallet; add modules in parallel for higher flow
How it works
Pretreat in. Plant unchanged. No additional power requirements.
CAST tees into your influent and sends cleaner water into the treatment you already run. Footprint stays small; you keep your system. In a pilot, CAST can be bypassed with a flip of a lever or control valve so operations run as before.
The unit
Built for the field, not the brochure
Performance
Ranges we prove on your water
Bench and pilot ranges — site-specific confirmation is the point of the paid pilot. Data collection and review are structured so results can be evaluated with advisor-grade rigor. Tap a range for the supporting detail.
Engineer-facing: CAST combines capillary action separation with hydrodynamic cavitation to act on both the suspended and the reactive-dissolved fractions of a stream. Cavitation-driven degasification raises pH by stripping dissolved CO₂, shifting the carbonate equilibrium toward precipitation of carbonate hardness. At the same time, cavitation elevates ORP through in-situ generation of reactive oxygen species and entrained dissolved oxygen, oxidizing and hydrolyzing redox-active species (e.g. ferrous iron to ferric hydroxide; manganese(II) to manganese oxides — manganese typically slower and prefers higher pH than iron), with co-precipitation of associated metals. This transfers a defined, reactive fraction of dissolved solids into the particulate phase for separation with native suspended solids, oils, and organics. Extent is stream-specific and confirmed in a paid pilot. CAST is not desalination and does not target conservative monovalent salts such as sodium and chloride.
90–99%
TSS removal
Expected range; matrix-dependent. Reactive dissolved conversion is stream-specific.
Technical envelope1–3 NTU
Turbidity
Typical clarified effluent
Technical envelopeUp to 8×
IX run-length
Longer life with CAST pretreatment
Third-party proof20–200 GPM
Module capacity
Per module — not a plant limit. Parallel modules for any higher flow.
How CAST connectsPerformance ranges are expected and site-specific — confirmed in pilot. Deloitte serves as an independent advisor for CAST — evaluating pilot data, verifying results, and helping shape water-as-a-service. Engaged since 2024; not an investor in Flotration or CAST. Full performance envelope
ROI estimator
What could CAST save on your water?
Enter annual costs CAST may influence. We estimate gross savings, then split 50 / 50 after a paid pilot — you keep half of documented savings; Flotration is compensated from the other half. Figures are illustrative until proven on your stream.
Your annual costs
Use best-available plant numbers — zeros are fine if unknown.
Expected cost reduction CAST may deliver
33%Default 33% is a planning placeholder. Real reduction is matrix- and constituent-specific and is confirmed in the paid pilot — not guaranteed by this tool.
How we charge: paid pilot first to prove CAST on your water. After proof-up, ongoing service is aligned to documented annual savings — Flotration keeps 50%, you keep 50%.
This estimator is not a quote, guarantee, or technical specification. One-page ROI after scoping uses your verified costs and pilot design.
50/50 after pilot
Aligned to savings, not CapEx sticker
Pilot proves it
Numbers confirmed on your stream
Where CAST fits
Sectors we serve
Tap a market for typical uses — CAST protects the treatment you already operate or plan.
The model
A low-risk way to put CAST on your water
You are not buying a plant. You are testing a unit on one stream — with the numbers to justify each next step.
01
Water as a service
Lease-plus-usage, not a capital purchase. Spending moves to the operating budget and scales with use — shaped with advisor input on how service models scale.
02
Pilot first
We prove CAST on your actual water before any scale commitment is made — with removal, breakthrough, and recovery documented for evaluation and verification.
03
Modular and scalable
Start with one unit; add capacity as results justify. Phased or distributed as needed.
Path from intake to proof
Open client intake01
Basic intake
Contact info, site location, industry, and a short problem statement — so we understand the stream before we talk.
Open form0260-minute scoping call
We schedule a focused call on pilot goals, tie-in points, and sampling. If you have water data ready, share it ahead of time.
Email Chris to schedule03
One-page ROI
Flotration returns a one-page ROI built from your disposal, discharge, and chemical costs.
04
Paid on-site pilot
Run CAST on the real stream. Document removal, breakthrough, and recovery — proof before scale.
Explore further
Deeper detail, one click away
Proof, documents, deployment, and the team — kept off the main scroll so you can move from how CAST connects to ROI without losing the path.
Bench & field results
ECT2 / Onterris PFAS bench data and pilot-oriented proof.
Documents
Technology overview, capability summary, operator brief, deck.
FAQ
Power, fouling, WaaS, cost model, pilot path, Deloitte.
Deployment options
Plant tee-in vs mobile treatment unit — when each fits.
The unit
Field hardware — production CAST, not brochure renders.
Strategic advisors
Deloitte — independent evaluation of pilot data since 2024.
Client portal
Sample workspace or login if you already have credentials.
About us
Team, story, and why we tee in instead of tear out.
Blog
Notes from Chris on CAST, pilots, and water as a service.
Next step
Start with a short intake — or just email us
Share contact info, site location, industry, and your problem statement. We schedule a 60-minute scoping call, return a one-page ROI, then prove CAST in a paid pilot. Not ready for a form? Reach Chris or John directly.
What you get from intake
- Structured problem framing for your site
- 60-minute scoping call
- One-page ROI
- Path to a paid on-site pilot