ChloroKlean BPR Compliant Chlorine Dioxide Disinfectant - UK Supplier

ChloroKlean Liquid vs Chlorine Dioxide Tablets

ChloroKlean Plus L20 is a ready-to-use, regenerative liquid chlorine dioxide (ClO₂). Chlorine dioxide tablets are dropped directly into the body of water and self-activate over 15 to 30 minutes - the issue isn't separate mixing, it's the activity curve. A tablet is a one-hit-wonder: it releases its full ClO₂ payload as a single spike that's consumed by demand and decays away. ChloroKlean Plus L20 uses regenerative chemistry that delivers a double activation - an initial release on dosing, then a secondary regeneration phase that maintains a sustained residual rather than spiking and falling. Tablets also rely on foil sachet packaging that is known to perish and blister in store, leaving exposed tablets that lose strength and become unsafe to handle. ChloroKlean Plus L20 ships in sealed HDPE drums and IBCs with no foil layer to fail. On a like-for-like dose basis, 40ml of ChloroKlean Plus L20 outperforms a 40g ClO₂ tablet. Same starting volume, but a higher effective kill rate thanks to the double-spike activation, sustained measurable residual, no activation lag, and full UK GB BPR compliance across PT2, PT4, PT5, and PT11.

Author
Key Advantage of ClO₂
Higher effective kill rate per like-for-like dose. Regenerative double-spike activation delivers a sustained residual instead of a single tablet-style release that is consumed and gone, with no 15-30 minute activation wait.
By-products
ChloroKlean produces the same end-point ClO₂ as a tablet system but avoids unreacted chlorite (ClO₂⁻) carry-over commonly seen when tablets are under-activated or dosed too soon.
pH Range
ClO₂ is effective across pH 4-10 regardless of delivery method. Tablet activation efficiency drops outside pH 6-8.
Regulatory Sources
UK GB BPR (PT2, PT4, PT5, PT11), HSE ACoP L8, HSE HSG274, WHO Guidelines for Drinking-water Quality, EU BPR 528/2012
UK Compliance
ChloroKlean Plus L20 is fully UK GB BPR-compliant across PT2, PT4, PT5, and PT11. Tablet products vary by supplier - always check the authorisation number before use.
Comparison Guide

ChloroKlean Liquid vs Chlorine Dioxide Tablets

Two ways to deliver chlorine dioxide (ClO₂) to a water system. Like-for-like, 40ml of ChloroKlean delivers a higher effective kill rate than a 40g tablet - via double-spike activation, sustained residual, and zero activation lag.

ClO₂

Chlorine Dioxide

  • Regenerative double-spike activation - sustained residual, not a single tablet hit
  • Ready to dose - no 15-30 minute in-water activation wait
  • Consistent ClO₂ strength every dose (factory-stabilised)
  • 40ml ChloroKlean delivers a higher effective kill rate than a 40g tablet (double-spike + sustained residual)
  • Compatible with standard chemical metering pumps for continuous dosing
  • Reduced PPE burden vs handling solid tablets
  • Single SKU spans PT2, PT4, PT5, and PT11 BPR applications
ClO₂ Tablets

Chlorine Dioxide Tablets (Sodium Chlorite based)

  • Compact and lightweight to ship and store dry
  • Long dry shelf life before the tablet is dropped in water
  • One-hit-wonder activity curve - single ClO₂ spike, then consumed and gone
  • 15 to 30 minute in-water activation lag before full biocidal action
  • Activation rate varies with water temperature, pH, and tablet size
  • Higher PPE burden when handling solid sodium chlorite tablets
  • Difficult to meter into a continuous dosing line - typically batch-dosed only
  • Foil sachet packaging degrades and blisters in store - exposed tablets lose strength and become unsafe to handle

Detailed Comparison

Detailed comparison of chlorine dioxide versus chlorine dioxide tablets
FeatureChlorine DioxideChlorine Dioxide Tablets
Effective Kill Rate (like-for-like dose)

Higher

40ml ChloroKlean outperforms a 40g tablet via double-spike activation and sustained residual

Lower

40g tablet delivers a single ClO₂ spike that is consumed by demand and falls away

Activity Curve

Double-spike regenerative

Initial release plus secondary regeneration for sustained residual

Single spike

One-hit-wonder - full payload released, consumed, and gone

Activation Time

None

Active on dosing - no waiting

15-30 minutes

Tablet must self-dissolve and activate in the water

Residual Behaviour

Sustained

Maintains measurable ClO₂ over hours

Decays after spike

Residual falls once tablet payload is exhausted

Dose Consistency

Consistent

Factory-stabilised liquid - same strength every time

Variable

Activation rate shifts with water temperature, pH, and tablet size

Continuous Dosing

Yes

Works with standard chemical metering pumps

Batch only

Tablets are added periodically, not metered continuously

Biofilm Control

Sustained penetration

Continuous residual reaches biofilm EPS over time

Single contact

Effective during spike, but no follow-up exposure

Packaging Integrity

Sealed HDPE drum / IBC

Stable industrial container that opens cleanly with a standard cap or tap, with no foil layer to perish in store

Foil sachet

Foil packs degrade and blister in store, and are awkward to open safely without the right tools, encouraging poor handling practice

Storage Footprint

Drum / IBC

500ml to 1000L pack sizes

Compact tubs

Lower volume per dose unit dry

Shelf Life In Use

Stable

Regenerative chemistry holds strength in sealed drum

Use on activation

Activated solution decays in hours; foil-pack failure shortens dry shelf life too

UK BPR Status

PT2/PT4/PT5/PT11

ChloroKlean Plus L20 fully compliant

Varies by product

Check supplier authorisation

When to Choose Each

Choose Chlorine Dioxide When:

  • You dose chlorine dioxide daily or continuously
  • Operator time, training, and PPE cost are material
  • You need a consistent, audit-traceable dose every time
  • Activation tanks, scales, and timers add complexity you want to remove
  • You run dosing pumps on pools, spas, cooling loops, or CIP lines
  • You want a single product across PT2, PT4, PT5, and PT11 applications

Consider Chlorine Dioxide Tablets When:

  • Very low-frequency, ad-hoc one-off disinfection
  • Long-term dry storage with no nearby dosing infrastructure
  • Remote or off-grid sites where shipping liquid drums is impractical
  • Single-use shock dose where activation time is acceptable
"When customers move from tablets to ChloroKlean Plus L20, the first thing they notice is the kinetics. Like-for-like, 40ml of ChloroKlean does more work than a 40g tablet - it hits twice, holds the residual, and is active the moment it goes in the water. A tablet gives you one spike and it's gone. For any site running continuous or scheduled dosing, that's a meaningful kill rate, compliance, and consistency win - on top of losing the daily 30-minute activation routine."
GO

Gavin Owen, Managing Director, ChloroKlean

BPR-compliant disinfection specialist

Why Choose ChloroKlean Plus L20

If you're considering switching to chlorine dioxide, ChloroKlean Plus L20 is purpose-built for industrial and commercial applications.

Regenerative Liquid ClO₂

ChloroKlean Plus L20 is a stabilised, regenerative chlorine dioxide formulation. Like-for-like, 40ml of ChloroKlean delivers a higher effective kill rate than a 40g tablet thanks to the double-spike activation, sustained residual, and zero activation lag.

BPR-Compliant Across Four PTs

One ready-to-use product covers PT2 (pools, spas, public areas), PT4 (food contact surfaces), PT5 (drinking water), and PT11 (cooling systems) under UK GB BPR. Tablet ranges typically require different SKUs per application.

Lower Operator Risk

Eliminates the powder-handling step, the activation tank, and the timing window where under-activated chlorite can be dosed by mistake. Reduces PPE requirements and simplifies COSHH risk assessments.

Regulatory and Scientific References

This comparison is informed by the following authoritative sources. Always refer to the latest published guidance.

HSE ACoP L8
Health and Safety Executive (HSE)

Legionnaires' disease: The control of legionella bacteria in water systems

ACoP L8 requires duty holders to maintain a consistent, monitored biocide dose. Ready-to-use liquid ClO₂ simplifies audit and traceability compared to operator-activated tablets.

View source
HSE HSG274
Health and Safety Executive (HSE)

Legionnaires' disease: Technical guidance

HSG274 sets out biocide dosing and residual maintenance expectations for cooling towers, hot/cold water systems, and spas - where consistent dose is critical.

View source
WHO Guidelines
World Health Organization (WHO)

Guidelines for Drinking-water Quality: Chlorine Dioxide

WHO recognises chlorine dioxide as an effective drinking water disinfectant regardless of delivery method, provided dose and residual are properly controlled.

View source
EU/UK BPR 528/2012
European Chemicals Agency (ECHA)

Biocidal Products Regulation

All chlorine dioxide products - liquid or tablet - require PT authorisation. ChloroKlean Plus L20 holds PT2, PT4, PT5, and PT11 compliance under UK GB BPR.

View source

Frequently Asked Questions

Switch From Tablets to Ready-to-Use Liquid ClO₂

Like-for-like, 40ml of ChloroKlean Plus L20 outperforms a 40g tablet - higher effective kill rate, double-spike activation, sustained residual, and no 15-30 minute activation wait. Speak to our team to size the right pack and dosing pump for your site.