Last updated: 12 Jun 2026 | 0 Views |
Khun Weerachai's jacuzzi bathtub has run nightly for 5 years. Last month he developed itchy red rashes on his back and neck, and Khun Wipawan got a respiratory infection. The doctor suspected Pseudomonas and Legionella from the tub plumbing. Black grime under the tub edge, musty bathroom smell, mold starting on the ceiling.
Surface scrubbing doesn't kill germs in plumbing. Pseudomonas and Legionella live in biofilm inside pipes. Concentrated chlorine corrodes tub rubber. Spray disinfectants don't reach cracks under the tub or ceiling cavity.
WHD places a 10,000 mg/h portable ozone unit in the master bathroom for 6 hours. As a gas, ozone seeps into pipes, ceiling voids, and under-tub cracks — killing Pseudomonas, Legionella, and mold 99.99%. Decays to oxygen, no corrosion of the jacuzzi.
Before: Hot Tub Folliculitis rashes, respiratory infection
After: Pseudomonas/Legionella gone 99.99%, jacuzzi safe again
"My wife and I enjoy the jacuzzi again with no rashes or infections."
— Khun Weerachai, Pathum Thani