This blog looks at Huwa-San’s stability in water and offers the water treatment market a biocide that provides long term protection of water systems. The addition of Huwa-San to water in unoccupied buildings means considerably less flushing, reduced testing and improved safety. Huwa-San added to building water systems prior to shutdown will protect unused water systems from microbiological growth. It could, for example, be an alternative to flushing during lockdown, school holidays and for any water system which is temporarily out of use.
Huwa-San: The Pros
How Huwa-San Works: Diagram 1
Reduce water usage whilst protecting against legionella bacteria
- Shutdown Water Systems
This is a use that is particularly pertinent during lockdown when buildings have been closed for lengthy periods. It is a technique that I have used where water systems are not drained down, for example, for schools over the summer months and hostels over the winter months. Prior to closure of the building the complete water system is cleaned (where required) and disinfected with four times the normal dose of Huwa-San so that 400 ppm hydrogen peroxide is left throughout the system.
Huwa-San has been shown to be stable for at least 6 weeks based on it half life in water. Flush outlets after week 3 to ensure there is still a healthy peroxide residue at the taps.
This use of Huwa-San will greatly reduce water losses (something which will become more important as water costs increase), reduce flushing frequency and testing and maintains system cleanliness throughout the shut-down period.
There will be other opportunities to take advantage of a stable biocide that will prevent biofilm formation in a water system. If you have any further ideas on how to utilise Huwa-San’s excellent stability it would be great to hear from you.