Are Tap Diffusers Are Outdated? — Here’s the Safer, Smarter Alternative


Why replace contaminated tap diffusers with more of the same… when you could install the smarter, safer Sentinel Tap Valve?

Let’s be honest. If you’ve gone through the trouble of identifying and removing contaminated tap diffusers, you already know the risks they pose—Pseudomonas, Legionella, biofilm, limescale, and backflow contamination. You’ve recognised the danger. You’ve taken action.

So here’s the question:
Why would you replace a known weak spot with the same outdated, failure-prone design?

You’ve already done the hard part. You’ve removed the old diffuser from the spout
Now you’ve got a clean slate. So let’s make it count.


Step Into the Future with the Patented Sentinel Tap Valve

The Sentinel Tap Valve isn’t just a replacement—it’s an upgrade. A leap forward.
Designed with NHS estates teams in mind, it tackles the core problems tap diffusers have always suffered from… and fixes them. For good.

Here’s why more and more facilities are making the switch:


Anti-Microbial by Design

The Sentinel Tap Valve doesn’t just resist microbes—it fights them. With in-built antimicrobial components, it actively works to reduce the risk of pathogen build-up right where it matters most: at the point of use.


🔒 Stops Backflow Contamination in Its Tracks

Our Unique patented non-return Duck Bill design prevent dirty water aerosols from back contaminating your tap and water system—something most standard tap diffusers simply can’t offer.

This alone is a game-changer for any trust serious about infection control.


💧 Laminar Flow for Safer Water Delivery

Standard diffusers aerate water—great for your kitchen sink, not so great in a healthcare setting. Aerated flows encourage airborne droplet spread.
The Sentinel Tap Valve delivers smooth, laminar flow, which significantly reduces the risk of aerosolised bacteria.


🧽 Easy to Clean, Easy to Maintain

Let’s not kid ourselves—if it’s hard to clean, it often doesn’t get cleaned.
Sentinel Tap Valves are designed for straightforward wipe-down cleaning and long intervals between maintenance cycles. Less hassle. Better compliance.


🪨 Anti-Limescale, Long Working Life

Limescale builds up fast—especially in hard water areas—and that creates an ideal breeding ground for pathogens.
The Sentinel’s smooth, treated surfaces make limescale a thing of the past, extending the lifespan of the valve and reducing your call-out rates.


💡 Why Settle for Basic… When Better Costs Less?

Let’s talk about the bottom line.
Sentinel Tap Valves aren’t just safer and smarter—they’re more cost-effective too.
Our combination of long working life and reduced maintenance reduced engineer call-outs, and reduced reactive maintenance means real quantifiable cost savings
You simply install, replace, and move on—with fully auditable compliance built in.


The Future of Tap Safety Isn’t a Diffuser. It’s Sentinel.

If you’re planning to replace tap diffusers—stop and think.
You’ve done the hard work removing a contamination risk.
Now’s your chance to replace it with a better, safer, and smarter alternative.


🔗 Read more about the Sentinel

Watch Our Video Sentinel Tap Valve and make the switch today.

Or better yet—get in touch with our team on 01628 529024 or email info@challisms.com for a free sample or a walk-through.