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WAPOTECH · UV and Supplemental Treatment · Chemical oxidation and flocculation aids used alongside chlorine

WAPOTEC SYSTEM (HydroSan / HydroXan)

Flocculation and oxidation aids dosed alongside chlorine to improve clarity and cut chloramines

← Back to all productsAvailable through FreyTechFacts summarized from manufacturer literature 2026-09-26; confirm details with FreyTech before specifying.

Overview

The WAPOTEC SYSTEM is not a disinfection system on its own and is not UV. It is a supplemental chemical process added to a conventional chlorinated, sand-filtered pool. WAPOTEC describes HydroSan as an additional treatment agent for optimal flocculation, and HydroXan as a product used in combination with chlorine for the oxidation treatment of swimming and pool water. The stated purpose is to improve the retention of pollutants in the filter, enhance the oxidation of organic contaminants, and reduce the formation of chlorine side-reaction products.

WAPOTECH's US site states that it introduced the WAPOTEC SYSTEM (HydroSan/HydroXan) as part of its ClearAmine solution, and that the system helps save cost and provides improved water clarity and air quality for bather comfort. WAPOTEC's product page says HydroSan/HydroXan are the group's best-known product innovations and were honored at the inventors' fair in Brussels, and positions the system as a problem-solver for municipal and commercial pools.

WAPOTEC also publishes WAPO Floc22, a coagulant/flocculant combining siliceous aluminate from natural clay minerals with an inorganic aluminum solution. According to WAPOTEC it uses one formulation and one dosing pump to agglomerate contaminants into large flocs that a traditional sand filter removes more easily. No dose rates, product concentrations, or packaging sizes are published on either site.

Is this a fit for your facility?

Usually a fit when

  • Chlorinated pools with sand or multimedia filtration where the operator wants better clarity and lower combined chlorine without replacing the treatment train
  • Indoor facilities dealing with chloramine odor and air-quality complaints, especially when paired with trichloramine monitoring
  • Owners looking to cut water, chemical and energy use through longer filter runs and shorter backwashes (as stated by the manufacturer)

Look elsewhere when

  • Not a standalone sanitizer; it is used alongside chlorine, not instead of it
  • Not a UV or ozone system; it is a dosed chemical process

Ideal facilities and conditions: Municipal and commercial indoor pools; Hotel and resort pools and spas; Existing sand-filter treatment systems being optimized rather than replaced.

Problems it addresses

Key capabilities and benefits

Capabilities

  • HydroSan: additional flocculation treatment agent (source: wapotec.com swimming pool page)
  • HydroXan: oxidation aid used in combination with chlorine (source: wapotec.com swimming pool page)
  • Applied to existing sand-filtration and disinfection systems as a filtration-optimization upgrade (source: wapotech.com)
  • WAPO Floc22 coagulant/flocculant: siliceous aluminate from natural clay minerals plus inorganic aluminum solution, one formulation, one dosing pump (source: wapotec.com/products)
  • Offered by WAPOTECH as part of its ClearAmine solution (source: wapotech.com)

Operational and buyer benefits

  • WAPOTEC states the system delivers significant reduction of chlorine by-products including chloramines and chloroform, without excessive dilution
  • WAPOTEC states it gives longer filter runs and shorter backwashes, so less water is wasted, and reduces operating cost for water, chemicals, energy and waste
  • WAPOTEC states it improves bather comfort, water clarity and air quality

Available models and configurations

HydroSanFlocculation aid
HydroXanOxidation aid used with chlorine
WAPO Floc22Coagulant/flocculant for sand filters

Technical specifications

Process typeChemical flocculation (HydroSan) plus chemical oxidation aid used with chlorine (HydroXan)Source: https://wapotec.com/swimming-pool-water-treatment
Applied toExisting sand filtration and disinfection systemsSource: https://wapotech.com/
RecognitionManufacturer states HydroSan/HydroXan were honored at the inventors' fair in BrusselsSource: https://wapotec.com/products

Specifications are summarized from manufacturer literature and depend on configuration. Confirm current values with FreyTech before design.

Installation requirements and retrofit considerations

Prerequisites

  • An existing chlorine disinfection system
  • Sand or multimedia filtration
  • Chemical dosing pump(s) for continuous feed

Retrofit and replacement notes

  • Manufacturer positions the system as an upgrade to existing filtration and disinfection systems rather than a replacement
  • Manufacturer states low implementation cost

Integration with other equipment

No equipment integrations are documented for this product. Coordination happens through the design team.

FreyTech's role: design, installation, commissioning, training, support

Project services

  • Evaluation of fit for your facility
  • Supply, lead time and pricing confirmed on request
  • Installation and support coordination where the product calls for it

Ongoing service and support

  • Parts, consumables and warranty coordination through FreyTech

Brochures, manuals, warranties and specifications

All resources for WAPOTEC SYSTEM (HydroSan / HydroXan) · Request documents

WAPOTEC SYSTEM (HydroSan / HydroXan): frequently asked questions

Is the WAPOTEC SYSTEM a replacement for chlorine?

No. HydroXan is used in combination with chlorine, and HydroSan is a flocculation aid. The pool still relies on its chlorine disinfection system.

Is this a UV system?

No. It is a dosed chemical process (flocculation and oxidation aids). It is listed under supplemental treatment because it is used alongside primary disinfection.

Next step

Is WAPOTEC SYSTEM (HydroSan / HydroXan) right for your facility?

Send us your pool volumes, current equipment, and what is not working. A specialist will review fit honestly and recommend next steps.

Serving commercial aquatic facilities across New York State.