Swimming Pool Water Treatment
Better Filtration. Clearer Water. Fewer Chemicals.
HydroFLOW® improves how your pool filters — acting as a physical clarifier so fine particles clump and clear, lifting pool water clarity and letting you cut chlorine, backwashing and running costs. It controls calcium scale on heaters and pipework too, with no plumbing changes. Ideal for busy public pools and hard-water sites.
Results from named-site case studies; vary by site conditions and baseline operation. View all swimming pool case studies →
What’s Really Driving Up Your Pool Costs
From busy leisure centres to hard-water private pools, four problems quietly erode water quality, push up chemical and running costs, and waste thousands of litres of treated water every year.
Cloudy Water & Weak Filtration
Fine particles slip straight through the filter, leaving water cloudy and forcing higher chemical doses and constant backwashing to compensate.
Calcium Scale on Heaters & Pipework
In heated and hard-water pools, calcium scale coats heat exchangers and heaters — cutting energy efficiency and pushing up maintenance.
Algae & Biofouling
Warm, recirculating water grows algae and biofilm on surfaces and inside pipework — turning water green or cloudy and harbouring bacteria.
Heavy Chlorine & Chemical Demand
Poor filtration and biofilm drive up chlorine, acid and clarifier dosing — adding cost, harsh odours and irritation for swimmers.
Ukraine wave pool: water cleared to a blue appearance within 12 days, with 60% less chlorine and 95.7% less E. coli. Read the case study →
Better Filtration, Lower Pool Running Costs
Weak pool filtration, scale, biofouling and excessive dosing carry a continuous cost across every pool. HydroFLOW® tackles six of the biggest — proven on named sites.
Clearer Water, Better Filtration
Flocculation helps filters capture the fine particles that cause cloudy water — for visibly clearer pools and fewer manual interventions.
Water Savings & Less Backwashing
Fewer pool backwash cycles — Colmar saved 2,535m³ of water a year, and an Indian pool cut water use ~60%.
Lower Chlorine & Chemical Use
Reduce chlorine, acid and clarifier dosing. A Ukraine wave pool cut chlorine 60%; India cut chemical cost 55%.
Lower Energy & Heat Loss
Fewer backwashes retain heated water and scale-free heat exchangers run efficiently — Colmar cut heat loss 41,275 kWh/yr.
Cleaner, Safer Water
Disrupting biofilm and aiding filtration supports hygiene against contaminants like Cryptosporidium — 95.7% less E. coli at a Ukraine pool.
Fast Return on Investment
Lower water, chemical and energy use builds a quick payback — Colmar reported a 0.7-year ROI on a single unit.
Ukraine wave pool: cleared to a blue appearance within 12 days — with 60% less chlorine and 95.7% less E. coli.
One fit. A return that compounds, season after season.
Tell us your pool's size and current water and chemical use, and we'll estimate your annual saving.
Calculate Your SavingsProcess Overview
Simple Installation. Immediate Protection.
Our patented technology integrates seamlessly into your existing operations with zero disruption.
The Fit
The HydroFLOW® unit installs around your existing pipework — typically before the pump and filters. No cutting, no welding, no shutting the pool. Compatible with any pipe material.
The Signal
A patented electronic signal propagates in both directions through the water, treating the whole circulation system from a single point — working continuously, 24/7.
The Results
Filtration improves and biofilm is disrupted. As water clears, chlorine dosing and backwashing can be progressively reduced — delivering chemical-light, water-efficient operation.
Monitor Every Unit. From Anywhere.
Real-time remote monitoring and instant alerts for every HydroFLOW® installation, from anywhere in the world.
Hydropath Care
Our remote monitoring platform gives you a complete overview of all your HydroFLOW® installations in one place. See which units are live, manage your projects, and stay in control — all from a single, easy-to-use dashboard.
HydroKNCT
The IoT device that connects your HydroFLOW® unit to Hydropath Care via LAN. Simple to install and compatible worldwide — keeping you connected to your system 24/7. Add optional sensors to unlock real-time temperature and signal monitoring.
Run Greener
More Efficient Pool.
Heated pools are resource-intensive — and every filter backwash drains heated, chemically treated water that must be replaced and reheated, making backwashing a major source of energy loss. Better filtration means fewer backwashes: at Colmar Nautical Stadium that cut heat loss by 41,275 kWh a year. With 100+ UK pools under threat from energy bills, HydroFLOW® chemical-free treatment cuts water, energy and chemical use together — lowering your footprint and running costs.
Sources: Colmar Nautical Stadium case study (HydroFLOW France) — 41,275 kWh annual heat-loss reduction; Swim England, Growing energy crisis puts pools under threat.
Water Conservation
Every backwash sends hundreds of litres of treated water to drain. Better filtration means fewer backwashes — conserving thousands of litres a year.
Energy Efficiency
Re-heating fresh water and forcing flow through scaled heat exchangers wastes energy. A scale-free, efficient pool holds its heat.
Fewer Chemicals
Less chlorine, acid and clarifier means a smaller chemical footprint and cleaner backwash discharge — a genuinely chemical-free approach.
Proven On Site
Real Sites. Real Results.
Drawn from Hydropath installations and our customers’ own feedback across cooling towers.
Hong Kong Disneyland: 35+ Units, Chemicals Cut Site-Wide
35+ HydroFLOW units across Hong Kong Disneyland's park and hotels cut chemical use and maintenance across multiple water systems.
Ukraine Wave Pool: 60% Less Chlorine, Clear Water
A HydroFLOW unit cut chlorine use 60% and cleared a 620m3 wave pool at a Ukrainian health centre.
India Pool: 60% Water Saved, 55% Chemical Saved
A HydroFLOW P-160 unit cut backwashing, chlorine dosing and costs at the Lodha Amara residential pool in Thane, India.
Proven On Site
Key swimming pool applications
One signal protects every part of the water circuit — and links to the deeper treatment pages behind each.
Filtration & Clarity
Acts as a physical clarifier so sand and cartridge filters capture finer particles — clearer water and less backwashing.
Algae & Biofouling
Disrupts biofilm and helps control algae across surfaces, pipework and balance tanks for clearer, cleaner water.
Calcium & Scale
Controls pool calcium scale on heaters, heat exchangers and pipework in heated and hard-water pools — protecting efficiency.
Pumps
Keeps circulation pumps free of scale and biofilm for reliable flow and lower maintenance.
Heaters & Heat Exchangers
Reduces calcium scale on pool heaters and heat exchangers to maintain heat transfer and cut energy use.
Legionella Management
By controlling biofilm and scale, supports Legionella risk management alongside your hygiene protocols.
Support & FAQ
Frequently Asked Questions
How does HydroFLOW® improve pool filtration?
It induces an electronic signal into your pool pipework that encourages fine, suspended particles to cluster together (flocculation). Larger clusters are far easier for sand and cartridge filters to capture, so more is removed on each pass — water clears, and filters work longer between backwashes. It treats the whole circulation system from a single fitting, with no chemicals added.
What is physical (electronic) flocculation, and why does it matter?
Traditional pools rely on chemical clarifiers (coagulants) to make particles clump so they can be filtered out. HydroFLOW® promotes the same effect physically, through its signal — no clarifier dosing required. Better flocculation is widely recognised as an important part of removing hard-to-filter contaminants such as Cryptosporidium, which resist chlorine and must be physically filtered out.
Can it clear cloudy or green pool water?
Cloudy water is usually fine particles the filter is missing; green water is an algae bloom. By improving filtration and disrupting the biofilm algae rely on, HydroFLOW® helps clear and prevent both — a Ukraine wave pool cleared to a blue appearance within 12 days. It works alongside your normal disinfection, not instead of it.
Is a chemical-free pool really chemical-free?
HydroFLOW® makes your pool chemical-light, not sanitiser-free. It significantly lowers the chlorine your pool needs — a Ukraine wave pool cut daily chlorine from 15 litres to 4–6 (around 60%) — but you should keep a residual disinfectant in line with local pool regulations. HydroFLOW® works with it, reducing demand, not replacing it.
How does it help heated and hard-water pools with scale?
In heated pools, calcium scale builds up on heaters and heat exchangers, cutting energy efficiency and raising maintenance. HydroFLOW® keeps calcium suspended so it rinses away rather than bonding to surfaces, and gradually breaks down existing scale — protecting heat transfer and lowering energy use, without acid descaling. It’s especially effective in hard-water areas.
How does it lower pool running costs?
Three ways: fewer backwashes save treated, heated water (Colmar saved 2,535m³ and 41,275 kWh a year, with a 0.7-year payback); lower chlorine and clarifier demand cuts chemical spend (India cut chemical costs 55%); and scale-free heat exchangers run efficiently. Exact savings depend on your filter type, bather load and water hardness.
Ready to Lower Your Pool's Running Costs?
Tell us about your pool and current water and chemical use, and our team will estimate your annual saving from chemical-free swimming pool water treatment.
Ready to explore sustainable water treatment?
Get in touch to find out how HydroFLOW® can work for you.
© 2026 Hydropath Technology Ltd. All rights reserved