What PT2 Covers
PT2 disinfectants are biocidal products used for disinfecting surfaces in private and public areas under the UK GB BPR and EU Biocidal Products Regulation. They are essential for maintaining hygiene in swimming pools, spas, healthcare facilities, and public buildings.
Under PT2, chlorine dioxide is used both as a water disinfectant for pools and spas and as a surface disinfectant for high-traffic public and clinical areas where hygiene is critical.
Key Applications
Swimming Pools & Spas
Water and surface hygiene for commercial pools, hot tubs, and wellness centres, with strong biofilm and Pseudomonas control.
Healthcare & Public Buildings
Surface disinfection for hospitals, care homes, schools, and public facilities where hygiene standards are critical.
Wellness & Leisure Facilities
Ongoing water treatment and surface hygiene for leisure centres, hydrotherapy pools, and spa environments.
General Hard Surface Hygiene
Broad-spectrum disinfection of hard surfaces with low residue and low taste and odour impact.
Why Chlorine Dioxide for PT2?
Chlorine dioxide offers advantages over traditional chlorine for pool, spa, and public area disinfection, particularly where biofilm and Pseudomonas are a concern.
Superior Biofilm Control
ClO₂ penetrates and breaks down biofilms on surfaces and in water systems where chlorine struggles.
Wide pH Range
Maintains efficacy across pH 4-10, unlike chlorine which loses effectiveness above pH 7.5.
Proven Against Pseudomonas
Highly effective against Pseudomonas aeruginosa and Legionella in spa and pool environments.
Low Taste & Odour
Does not impart the strong chlorine smell often associated with pools and spas.
No THM Formation
Does not produce trihalomethanes or the disinfection byproducts associated with chlorination.
BPR Compliant
Fully compliant with UK GB BPR and EU regulations for PT2 surface and area disinfection.
Dosing & Compliance Notes
Typical chlorine dioxide (ClO₂) dose and residual figures below are indicative starting points. Always confirm site-specific dosing with a competent water treatment adviser.
| Application | Typical ClO₂ dose / residual | Key standard |
|---|---|---|
| Pool & spa water residual | 0.1-0.5 mg/L free ClO₂ residual | PWTAG / BPR PT2 |
| Spa biofilm shock treatment | Elevated dose per product guidance, then flush | BPR PT2 |
| Hard surface disinfection | Apply per product dilution, contact then wipe | BPR PT2 |
| Public area water systems | 0.1-0.5 mg/L residual maintained continuously | HSE ACOP L8 (where applicable) |
Pool and spa residual figures follow PWTAG guidance. Always confirm site-specific dosing, contact times, and monitoring frequency with a competent adviser.
BPR Compliance
All ChloroKlean PT2 products comply with UK GB BPR and EU Biocidal Products Regulation requirements. Safety data sheets and technical data sheets are available on request for every product.
Related Resources
Frequently Asked Questions
Need PT2 Disinfection Solutions?
Contact our team for PT2 chlorine dioxide product recommendations and dosing guidance for your pool, spa, or public area application.