FAQ's
Frequently Asked Questions (FAQs)
GENERAL PERFORMANCE & SAFETY
Does the filtration system really work?
Yes. Our antibacterial filtration products use advanced Hollow Fiber Membrane (HFM) technology to physically block and remove 99.99999% of bacteria from the water supply. This includes Legionella, NTM (Non-Tuberculous Mycobacteria), E. coli, and other harmful microorganisms such as Cryptosporidium and Giardia.
Unlike chemical treatments, HFM technology works by mechanical filtration, meaning bacteria and pathogens cannot pass through the microscopic pores of the membrane. This ensures consistent, reliable protection for water passing through the filter at all times.
Filtration performance applies to the treated water stream and does not imply sterility of external plumbing or fixture surfaces.
What makes Hollow Fiber Membrane technology so effective?
Hollow Fiber Membranes contain millions of tiny tube-like fibers with pores small enough to block bacteria and protozoa while still allowing clean water to pass through at high flow rates.
Key advantages include:
• No chemicals or additives
• Immediate protection (no “activation time”)
• Consistent performance over the life of the filter
• Proven effectiveness in medical and laboratory environments
Which contaminants are removed?
Our filters remove:
• 99.99999% of bacteria (including Legionella, NTM, E. coli)
• Waterborne pathogens such as Cryptosporidium and Giardia
• Particulate matter larger than the membrane pore size
Please note: These filters are designed to remove microbiological contaminants, not dissolved chemicals, salts, or heavy metals.
WATER TEMPERATURE & HEAT EXPOSURE
What water temperatures can the filter safely withstand?
Our Hollow Fiber Membrane (HFM) filters are designed for normal domestic and commercial water temperatures, including standard shower use.
For optimal long-term performance, we recommend that continuous water temperatures remain below approximately 41°C (106°F).
Brief exposure to higher temperatures during normal use is not typically harmful. However, prolonged or repeated exposure to excessively hot water can gradually affect the membrane structure and reduce filter lifespan or performance over time.
Can I still take a hot shower with the filter installed?
Yes.
Most comfortable shower temperatures are well below the recommended maximum operating temperature of the membrane. Under normal showering conditions, the filter performs safely and effectively without issue.
Many users continue to use the filter comfortably in everyday hot-water systems without experiencing problems.
What happens if very hot water passes through the filter?
Occasional short-term exposure to elevated temperatures is unlikely to cause immediate failure. However:
· Repeated exposure to excessively hot water
· Continuous high-temperature flow
· Exposure to near-boiling or scalding water
…may damage the Hollow Fiber Membrane over time.
If membrane damage occurs, the filter may no longer provide the intended microbiological protection and should be replaced.
Does hot water make bacteria pass through the filter?
No.
Within the recommended operating conditions, the membrane continues to provide effective bacterial filtration. Reduced flow or normal aging does not cause bacteria to “break through” the filter.
However, exposure to temperatures beyond the recommended limits may compromise the membrane structure itself. For this reason, excessively high water temperatures should be avoided.
How can I protect the filter from excessive heat?
We recommend:
· Avoiding maximum-temperature settings on showers
· Not flushing boiling or near-boiling water through the filter
· Allowing extremely hot water lines to cool briefly before use if necessary
· Using thermostatically controlled showers where possible
These simple precautions help maximise filter lifespan and maintain optimal performance.
What is the safest recommendation for vulnerable or immunocompromised users?
For users with conditions such as:
· Bronchiectasis
· NTM (Non-Tuberculous Mycobacteria)
· COPD
· Immunocompromised health conditions
…maintaining water temperatures within normal showering ranges and replacing filters according to schedule is strongly recommended as part of a broader infection-control strategy.
As with all plumbing fixtures, routine cleaning of external surfaces and good hygiene practices are also advised.
WATER PRESSURE & FLOW
Will the filter reduce my water pressure?
In good-quality mains water, you may notice a slight reduction in flow, which is normal for any high-performance filtration system.
However:
• The shower experience remains strong and comfortable
• Many users report better spray patterns
• Reduced water usage can lead to lower energy costs, especially for hot water
Our product design optimises flow to maintain excellent performance even in high-demand domestic systems.
Why does the flow reduce over time?
As the filter captures bacteria and sediment, these particles accumulate on the membrane surface. This is known as progressive loading and is a sign the filter is doing its job.
In areas with:
• High sediment levels
• Poor water quality
• Older pipework
…the filter may block more quickly and require more frequent replacement.
FILTER LIFESPAN & MAINTENANCE
How often does the filter need to be changed?
Filter lifespan depends on water quality and usage, but typical capacities are:
• SS-1 / SS-2: up to 5,000 litres
• SS-2 Plus: up to 10,000 litres
• SS-3: up to 20,000 litres
In normal household use, this can equate to several months of protection.
What happens if my water has a lot of sediment?
High sediment levels will cause the filter to clog more quickly. This does not reduce filtration effectiveness, but it does reduce flow, signaling that the filter is reaching the end of its service life.
In such cases:
• Filter replacement may be required sooner
• Performance remains safe until flow becomes noticeably restricted
Is there a risk of bacteria growing inside the filter?
No. The purpose of the filter is to prevent contaminated water from exiting the filter, thereby eliminating exposure risk from water passing through the system. The advanced hollow fiber membrane design creates a physical barrier that prevents bacteria from entering the filtered water stream during normal use.
As a result, water leaving the filter remains microbiologically protected throughout the filter’s service life when the product is used and replaced according to guidelines.
Maximum risk reduction is achieved when filtration is combined with routine cleaning and inspection of the exterior filter housing, outlet, and surrounding surfaces. These external areas are exposed to environmental conditions and are not sterile, so maintaining good hygiene helps prevent contamination originating outside of the filter itself.
Is changing the filter difficult?
Not at all. Filter replacement is:
• Quick
• Tool-free
• Designed for non-technical users
Clear instructions are provided with every product.
For healthcare, high-risk, or immunocompromised environments, the use of basic personal protective equipment (gloves at a minimum) during filter replacement is recommended as a general hygiene precaution.
LEGIONELLA & HEALTH QUESTIONS
Can I catch Legionnaires’ disease by touching the shower head or filter?
When simple best-practice hygiene guidelines are followed, the risk is minimal.
Legionnaires’ disease is primarily contracted by inhaling aerosolised water containing Legionella bacteria. Touching plumbing fixtures is not considered a primary exposure route for Legionella by itself.
Handling the shower head or filter does not create aerosols. However, as with any plumbing fixture, external surfaces can accumulate moisture, mineral scale, and environmental microorganisms over time. Routine cleaning of these surfaces and good hand hygiene after handling or maintenance are recommended to minimise any residual risk.
This information specifically addresses Legionella. Other environmental organisms, such as non-tuberculous mycobacteria (NTM), may have additional exposure pathways and should be managed according to medical guidance.
What if the shower hasn’t been used for a long time?
The filter will continue to produce microbiologically safe water even after long periods of inactivity. Extended non-use does not cause contaminated water to pass through the filter membrane during use.
However, long periods of water stagnation can reduce filter service life. When water is stagnant, disinfectant residuals normally present in the supply water can decline, which allows biofilm to develop more readily on wetted surfaces. Because the filter is designed to capture microorganisms, this biological loading primarily affects the supply side of the membrane and can contribute to membrane blockage and reduced service life over time.
Periodically running water through the system is therefore recommended as a best practice to help limit stagnant conditions and maintain disinfectant contact within the plumbing and filter. This supports optimal filter performance and longevity but does not impact the microbiological quality of the water leaving the filter, which remains protected during normal use.
If a fixture or filter has not been used for an extended period, a brief visual inspection and routine cleaning of the exterior filter housing and outlet is also recommended. These external surfaces are exposed to ambient moisture and environmental conditions and represent the primary area where surface contamination may develop during prolonged inactivity.
INSTALLATION & COMPATIBILITY
Will it fit my shower or water outlet?
Yes. Our Shower Safe products use standard universal fittings compatible with:
• Virtually all domestic shower heads
• Most commercial installations
No specialist plumbing is required.
Can the filter be used in commercial or healthcare environments?
Yes. Our filtration systems are suitable for:
• Homes
• Hotels
• Care homes
• Hospitals
• Gyms and leisure facilities
They are particularly effective where Legionella risk management is required.
TESTING, CERTIFICATION & GUARANTEE
What scientific proof supports these claims?
Our products have been independently tested and validated by leading scientific institutions and accredited laboratories.
Certification reports and test data are available:
• On the product pages
• Under the “Info” section of the website
Do you provide a guarantee?
Yes. SafeWaterProducts.com guarantees that when:
• Products are installed correctly
• Filters are replaced according to guidelines
…the system will remove 99.99999% of bacteria from the treated water, including Legionella, NTM, E. coli, Cryptosporidium, and Giardia.
PRICING & VALUE
Why are your products more competitively priced than many alternatives?
We design and manufacture our products directly and do not rely on costly intermediaries or agents. This allows us to offer:
• Professional-grade filtration
• At a fair and transparent price
• Without compromising safety or performance
ADDITIONAL QUESTIONS
Does the system use chemicals or electricity?
No. The filtration process is:
• Entirely mechanical
• Chemical-free
• Power-free
Protection is continuous and automatic whenever water flows.
Who should consider using these products?
Our filters are ideal for:
• Families
• Elderly or immunocompromised individuals
• Property managers
• Healthcare and hospitality providers
• Anyone concerned about waterborne bacteria
Individuals with specific medical conditions should follow guidance from their healthcare provider regarding additional hygiene or exposure precautions.
Sediment & Poor Water Quality
Important Information for High-Risk Regions
Certain regions experience higher levels of sediment, pipe corrosion, scale, or fluctuating water quality. While our Hollow Fiber Membrane (HFM) filtration systems remain fully effective at blocking bacteria, these conditions can affect filter lifespan and flow rate.
This section explains what to expect and how to achieve the best performance in challenging water conditions.
WHAT IS CONSIDERED “POOR WATER QUALITY”?
Poor or challenging water quality may include:
• High sediment levels (sand, silt, rust particles)
• Old or corroded pipework
• Intermittent water supply
• High turbidity (cloudy water)
• Construction or infrastructure disturbance nearby
• Rural or remote water supplies and Inconsistent or poor city water disinfectant control.
These conditions are more common in older buildings, rural areas, coastal regions, and some international locations.
HOW DOES SEDIMENT AFFECT HOLLOW FIBER MEMBRANE FILTERS?
Hollow Fiber Membrane filters work by physically trapping particles and bacteria on the surface of the membrane.
When sediment levels are high:
• The filter captures sediment as well as bacteria
• The membrane surface loads more quickly
• Flow rate reduces sooner than in clean water areas
This is a normal and expected outcome and confirms that the filter is actively protecting the user.
DOES SEDIMENT REDUCE BACTERIAL PROTECTION?
No.
Even in poor water conditions:
• The 99.99999% bacterial removal performance remains unchanged
• Filtration effectiveness is maintained until the filter is fully blocked
• Reduced flow is an early warning indicator, not a safety failure
The filter does not “let bacteria through” as it becomes loaded.
WHY DOES THE FILTER BLOCK FASTER IN SOME REGIONS?
Sediment particles are often:
· Much larger than bacteria
· Present in significantly higher volumes
· A surface and nutrient source that can support bacterial attachment and biofilm development
In regions with higher sediment levels or reduced disinfectant residuals, both particulate loading and biological growth can contribute to more rapid membrane loading. As a result, the filter may reach its flow-reduction threshold sooner in these areas compared to regions with clean, well-treated mains water.
HOW WILL I KNOW WHEN THE FILTER NEEDS REPLACING?
Common indicators include:
• Noticeable reduction in water flow
• Slower shower fill or spray
• Longer time to achieve desired pressure
There is no need for testing equipment — flow reduction is the built-in service indicator.
WILL THE FILTER CAUSE A COMPLETE BLOCKAGE?
The filter will gradually slow, not suddenly fail.
This gives users ample time to:
• Continue safe use at reduced flow
• Arrange a replacement at their convenience
Complete blockage is extremely rare under normal domestic use.
HOW OFTEN SHOULD FILTERS BE CHANGED IN HIGH-SEDIMENT AREAS?
In high-risk regions:
• Filters may need replacing more frequently than the stated litre capacity
• Lifespan may be reduced depending on sediment concentration
• Heavy usage combined with poor water quality accelerates loading
For these regions, we recommend:
• Monitoring flow regularly
• Keeping a spare replacement filter available
CAN A PRE-FILTER HELP IN POOR WATER CONDITIONS?
Yes. In extreme sediment conditions:
• A coarse pre-filter can extend the life of the antibacterial filter
• Larger particles are captured before reaching the HFM membrane
• Overall system efficiency is improved
This is especially beneficial in:
• Rural supplies
• Construction zones
• Older commercial buildings
DOES POOR WATER QUALITY DAMAGE THE FILTER?
No.
Sediment does not damage the membrane — it simply occupies surface area.
The filter:
• Does not degrade
• Does not release trapped contaminants
• Maintains structural integrity throughout its service life
IS THE WATER STILL SAFE IF FLOW IS REDUCED?
Yes.
Reduced flow indicates the filter is nearing replacement, not that protection has failed.
Until the filter is fully blocked:
• Bacterial protection remains fully active
• Water remains microbiologically safe
WHAT SHOULD USERS IN HIGH-RISK REGIONS DO BEFORE FIRST USE?
We recommend:
• Running water through the system for 1–2 minutes on first installation
• This flushes loose sediment from the pipework
• Ensures optimal starting performance
WHO SHOULD PAY PARTICULAR ATTENTION TO SEDIMENT ISSUES?
Extra attention is recommended for:
• Healthcare facilities
• Care homes
• Hotels and gyms
• Properties with stored water systems
• Regions with known Legionella risks
In these environments, proactive filter management is strongly advised. Sediment can harbor bacteria and provide nutrient sources that promote biofilm growth.
SUMMARY: KEY POINTS FOR HIGH-RISK REGIONS
• Sediment reduces filter lifespan, not filtration effectiveness
• Flow reduction is a normal and helpful indicator
• Bacterial protection remains constant
• More frequent filter changes may be required
• Pre-filtration can improve performance in extreme cases
Have we answered all of your questions? If not, please feel free to drop us a line through our CONTACT US page.