Hydrosense Ltd

03/09/2026

Positive result. Remediation done. Job finished? Not quite. Testing after remediation to confirm disinfection has worked is the step too many water safety programmes skip.

Hydrosense PRO gives you that confirmation in 25 minutes on-site - before a single tap is reopened to the public.

https://hubs.li/Q04vxHl30

Our comprehensive and sensitive Legionella testing solution is designed for water safety. This advanced one-time-use kit uniquely detects all serogroups (1-15) of the most dangerous Legionella species, Legionella pneumophila in just 25 minutes.

02/09/2026

🚨 114 cases. 90 hospitalizations. 7 deaths. That's the toll of the Central Harlem Legionnaires' outbreak in 2025 - and it happened at buildings that were technically compliant with the rules at the time.

NYC just responded with its biggest cooling tower regulation update in years: Legionella testing now has to happen every 31 days instead of every 90. That's a 3x jump in testing frequency, and it's a sign of where regulation is headed everywhere, not just NYC.

Read More about new regulations and what you need to do to stay protected:
https://hubs.li/Q04vxH6_0

The NYC Health Department is currently investigating a community cluster of Legionnaires' disease in the Upper East Side neighborhoods of Carnegie Hill and Yorkville (ZIP codes 10028, 10128, and 10075). For the latest information on this cluster, see Legionnaires' Disease.

28/08/2026

The fountain in a hotel lobby or shopping centre might look beautiful - but it could also be an overlooked Legionella risk. Decorative water features generate aerosols, are often poorly maintained, and are explicitly listed by the WHO as a known transmission source. Does your risk assessment include them?

Read More on our Blog: https://hubs.li/Q04vxt4j0

Historically, outbreaks of Legionnaires disease associated with decorative fountains have often been identified in healthcare or retirement facilities(2). Thankfully it has now widely been

21/08/2026

FAQ: Does heavy rainfall increase Legionella risk?

Yes - and more than most people realise. Rain can reduce disinfectant levels, introduce nutrients into water systems and alter water temperature in ways that encourage bacterial growth.

A 2026 investigation into a Minnesota outbreak illustrates the stakes: 34 cases, including 30 hospitalisations and two deaths, were linked to a groundwater-supplied community system. Investigators identified insufficient residual disinfectant and elevated organic carbon as important factors; chloramine disinfection halted the outbreak.

After heavy rain or flooding, review your water-management plan and check disinfectant residuals. Additional testing should be risk-based, not automatic.

https://hubs.li/Q04t1V-v0

Sources
https://hubs.li/Q04t1ZzX0
https://hubs.li/Q04t1VPg0

20/08/2026

Did you know dental unit waterlines are one of the less-discussed Legionella risk environments?

Water stagnates between patients, there's no temperature control, and aerosols are generated directly during procedures. Our sector spotlight covers what dental practices need to know.

Source: https://hubs.li/Q04tl-sJ0

14/08/2026

Should Legionella testing be mandatory in private rentals? 🏠

UK landlords have a legal duty to assess and control Legionella risk. But HSE guidance doesn't require routine testing in domestic water systems - and there's no such thing as a "Legionella test certificate."

So here's the question: is tenant protection depending too much on how seriously an individual landlord takes water safety?

The case FOR mandatory testing:
✅ A consistent baseline of protection for all tenants
✅ Less reliance on landlord awareness (or lack of it)
✅ Catches risk in higher-risk properties - vulnerable occupants, low water use, stored hot water, long vacancies

The case AGAINST:
❌ Disproportionate for a typical, well-maintained system
❌ Near-impossible to enforce across millions of properties
❌ Costs likely passed on to tenants
❌ HSE already prioritises risk-based control over blanket sampling

This isn't really about testing every home. It's about whether higher-risk properties need clearer, more consistent safeguards than they currently get.

We want to hear from property managers, landlords and water safety professionals, where do you stand?
Drop your view in the comments 👇

10/08/2026

32% of hot tub and pool owners 'trust fully' they're doing maintenance right.

Only 8% actually test for Legionella. If consumers carry that much false confidence about their own equipment, you can guarantee they assume the same about every building they walk into. The bar is on us. We've been raising it for over 20 years - let's keep raising it.

https://bit.ly/4pTObfa

05/08/2026

A year ago, two major Legionella outbreaks in New York led to 151 confirmed cases and 9 deaths, both linked to contaminated cooling towers.

Since then, New York City has strengthened its testing requirements, increasing sampling from every 90 days to every month.

But the cycle is familiar: outbreak, scrutiny, tighter regulations... then complacency until the next incident.

Should the industry wait for outbreaks to drive change, or should frequent testing become standard practice?

Rapid Legionella testing can help building operators identify risks sooner and stay ahead of potential outbreaks.

What do you think? Is the industry doing enough to prevent Legionella incidents?

https://hubs.li/Q04pBLfV0

04/08/2026

79% of Americans say they're more germ-conscious post-COVID. Yet 21% have never heard of Legionella. Hand sanitiser, yes. Shower head biofilm, no. Our industry has work to do, and we've been at it for decades — let's keep going together.

https://hubs.li/Q04rtXwc0

30/07/2026

When Legionella is a risk, waiting days for lab results isn't good enough... and it doesn't have to be.

🔬 What it detects: All Legionella pneumophila serogroups 1–15 — the strains responsible for over 97% of Legionnaires' disease cases globally

⏱ How fast: Results in 25 minutes, on-site — no lab, no courier, no delay

📍 Where it works: Cooling towers, showers, taps, spas, pools, decorative fountains, water storage tanks and more

👤 Who can use it: Anyone — no specialist training required. Visual step-by-step instructions included

💧 How sensitive: Detects Legionella at levels as low as 100 CFU/L, even in hard water and high alkalinity conditions

Hydrosense PRO Water Test uses the same lateral flow technology as COVID-19 and pregnancy tests, applied to one of the most serious public health risks in the built environment. Trusted by water safety teams in 77 countries.

Available now in our webstore with fast delivery. 👇

https://hubs.li/Q04r66nN0

Our comprehensive and sensitive Legionella testing solution is designed for water safety. This advanced one-time-use kit uniquely detects all serogroups (1-15) of the most dangerous Legionella species, Legionella pneumophila in just 25 minutes.