Recent investigations have revealed a widespread presence of persistent and potentially harmful chemicals, known as PFAS (per- and polyfluoroalkyl substances), in water sources across the UK. These “forever chemicals” are raising alarm among scientists, regulators, and public health experts due to their persistence in the environment and potential impacts on human health.

What Are PFAS and Why Are They Called ‘Forever Chemicals’?

‘Forever chemicals’ is a nickname for a large group of synthetic substances called PFAS (per- and polyfluoroalkyl substances). They’re everywhere, from non-stick pans and waterproof jackets to firefighting foam. Their unique chemical structure means they don’t break down naturally, so they stick around in the environment (and in our bodies) for years, maybe even centuries.

This growing awareness has led many water professionals and homeowners to look for ways to remove PFAS from their water, using reliable technologies like reverse osmosis systems, carbon-based filter cartridges, and UV disinfection units as part of a comprehensive purification setup.

What’s Happening in UK Water?

PFAS are more common in UK water than many of us realise. Tests from England and Wales show that about a third of rivers and water courses have medium to high-risk levels of some key PFAS chemicals, especially PFOS (perfluorooctane sulfonate) and PFOA (perfluorooctanoic acid). More than 11,000 water samples taken last year tested positive for PFAS compounds.

These substances have also been found in bottled water and tap water across major cities like Birmingham and Coventry. While levels here are typically lower than in some other countries, PFAS are still present—and persistent. That’s why it’s essential to use filter housings and cartridge systems that are compatible with PFAS-reducing media, especially in areas with known contamination.

The Hidden Threat of Trifluoroacetic Acid (TFA)

Another “forever chemical” popping up in headlines is trifluoroacetic acid, or TFA. Scientists from the University of York have found TFA in almost every river they tested across the UK, from Scotland down to Wales and Northern Ireland.

TFA is a breakdown product of other PFAS compounds and is equally stubborn. Although it's not yet regulated in the UK, scientists and regulators are pushing for stricter controls.

In the meantime, homeowners and professionals can reduce exposure with multi-stage filtration, including systems that use specialist media within pressure vessels to treat a wider range of contaminants, not just standard PFAS.

Health Risks Linked to PFAS Exposure

Even at low levels, long-term PFAS exposure has been linked to a range of serious health conditions, including:

• Thyroid problems
• Certain cancers
• Liver and kidney damage
• Fertility issues
• Developmental harm to unborn babies

This is one reason why point-of-entry filtration, particularly using reverse osmosis or UV systems, is increasingly being used not just for taste and clarity—but for peace of mind. These technologies are already part of our water purification collection, trusted by both domestic users and trade professionals.

Where Do These Chemicals Come From?

PFAS contamination often comes from:

• Sites like airports and military bases, where firefighting foam containing PFAS is used
• Industrial plants that manufacture or use PFAS in their processes
• Wastewater treatment works that can’t fully remove these chemicals
• Landfills leaking contaminated water into surrounding soil and rivers

Many of these sources have contributed to ongoing, long-term contamination in groundwater—one of the reasons why long-life filter media, housed in durable WRAS-approved pressure vessels, can play such an important role in tackling these legacy pollutants.

What’s Being Done in the UK?

In 2024, the Drinking Water Inspectorate set a new limit of 100 nanograms per litre for 48 types of PFAS combined, which is a step forward. But these limits aren’t yet backed by full legislation, and there are calls for tighter controls and more frequent testing.

Compared to the US, where limits for some PFAS are much stricter, and the EU, which regulates the total PFAS concentration, the UK still has some way to go.

Until we see more consistent regulation, bespoke filtration systems tailored with the right media, cartridges, and housing are essential for managing risk at both the domestic and commercial level.

What Can You Do Right Now?

Whether you’re a water industry professional or a homeowner worried about what’s in your glass, there are simple, effective ways to reduce PFAS exposure:

• Install a PFAS-rated water filter, such as activated carbon or RO
• Use filter jugs or under-sink systems for quick wins
• Upgrade to whole-house solutions using UV disinfection and specialist filter media
• Keep track of your area’s water quality using public reports

We offer a full range of filtration systems, including UV units, pressure vessels, RO systems, and bespoke filter housings. Helping you ensure what flows from your tap is always safe and clean.

A Call for Urgent UK Action on ‘Forever Chemicals’

PFAS contamination is a long-term issue, one that’s likely to get worse before it gets better unless we act quickly. We need legislation, investment in water treatment infrastructure, and most importantly, practical solutions that people can use today. Water safety isn’t just about taste or clarity anymore. It’s about protecting future generations.

Protect your home, your clients, and your water.

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Finding the right clean water system for your agricultural setup isn’t always straightforward. The needs on a dairy farm are miles apart from a commercial greenhouse or a rural smallholding. And when you’re dealing with private water supplies, rainwater harvesting, or pressure systems, the choices can be overwhelming.

So where do you start? The good news is that with the right setup, you can take control of your water supply, reduce reliance on mains water, and keep everything running efficiently. Here are the 5 key considerations when choosing the best clean water system for your farm, field or plot.

Where’s your water coming from?

If you’re drawing water from a borehole, well or spring, you’ll need a reliable pump to get it where it needs to go. Submersible borehole pumps are a popular choice here, they’re quiet, energy-efficient and great for deeper sources. For more shallow setups, a jet pump might do the trick, especially where you need a bit more pressure to move water uphill or across long distances.

Harvested rainwater is fantastic for non-potable uses like washing equipment, watering crops or topping up tanks for livestock. These systems can be stored in above-ground or underground potable tanks, then pumped out with a booster pump to feed irrigation or troughs.

Think about how the water’s being used

Once you know where the water’s coming from, think about how it’s going to be used day-to-day. Clean water systems in agriculture generally fall into a few categories:

• Irrigation – For crops, greenhouses, polytunnels or lawns. This might mean a constant flow over long periods, so pressure and consistency matter.
• Livestock – Supplying water to troughs across a yard or several fields. You might need multiple outlets running at different times, especially if you’ve got cattle or horses.
• Washing down – Whether it’s crates, barns, equipment or vehicles, you’ll need a good supply and the right pressure.
• Domestic use – If you’re on a smallholding or live on-site, you may also need a separate or integrated system for drinking, bathing, or household use.

Different setups will need different flow rates and pressure levels. This is where pressure vessels and booster pump sets come in to regulate delivery, maintain consistent pressure, and reduce wear on the pump itself.

Match the pump to the job

One of the most common issues we see is pumps that are either oversized or underpowered. Too small, and you won’t get enough pressure or flow. Too big, and you’ll waste energy, potentially damaging your system over time as well.

This is where talking to someone who understands both pumps and agricultural setups is key. A good supplier will ask about:

• Distance from the water source to where it’s needed
• Height differences (head height)
• Flow rate and pressure requirements
• Number of outlets or zones
• Whether it’s continuous or intermittent use

With the right information, they can help recommend a submersible, surface or booster pump that’ll deliver long-term, energy-efficient performance.

Don’t forget storage

Water storage is often overlooked, but it’s a game-changer if you're collecting rainwater or pumping intermittently from a natural source.

Potable water tanks (safe for drinking water) come in all shapes and sizes. Enduramaxx tanks, for example, are a solid choice—tough, UV-resistant and available in capacities to suit anything from a small allotment to a large farmyard.

Storing water gives you flexibility. You can pump at off-peak times, store for drier weather, or create a buffer when demand spikes. Pair your tank with a float switch or control system, and your pump can turn on and off automatically as needed—saving energy and extending the life of the system.

Keep things running with the right accessories

It’s not all about pumps and tanks. Electrical accessories like control panels, pressure switches, and level sensors are what keep your system ticking over smoothly. Investing in good-quality fittings and connectors also prevents leaks and keeps everything watertight, especially in more remote or exposed areas.

If you're using air pumps for aeration in storage tanks or fish ponds, or driving certain types of low-pressure systems, brands like Charles Austen and Secoh are trusted for their quiet, efficient operation, especially in sensitive agricultural environments.

And don’t forget spares. Diaphragms, filters and valves are the small parts that make a big difference. Keeping a few essentials on hand can mean the difference between a quick fix and a costly delay in the middle of a busy season.

Final thoughts

Choosing the right clean water system for your agricultural setup isn’t just about picking a pump off the shelf, it’s understanding how all the pieces work together. From the source, to the storage, to how and when it’s used, getting it right means your crops grow stronger, your livestock stay hydrated, and your day runs a lot smoother.

If you’re not sure where to start, we’re always happy to chat. Whether you’re running a large operation or just getting started with a smallholding, there’s a clean water solution that’ll fit just right—and we’re here to help you find it.

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Choosing the right pump can make or break the health and beauty of your koi pond. The best koi pond pumps deliver powerful water circulation while staying energy efficient — exactly what serious koi keepers need. In this guide, we explore why Charles Austen’s aquatic range stands out as a top choice for pond owners.

Why Powerful Yet Energy-Efficient Pumps Matter for Koi Ponds

Koi produces a lot of waste, and ponds need strong filtration and oxygenation to stay crystal clear. A high-quality pump prevents stagnant water, reduces algae, and keeps oxygen levels high so your koi stay active and healthy. Energy-efficient models help you enjoy a stunning pond without high electricity bills.

Charles Austen Aquatic Range – Top Recommendations

Water Pumps - Charles Austen water pumps are built for demanding aquatic and hydroponic systems. These powerful pumps circulate water efficiently, maintain proper oxygen levels, and ensure even nutrient distribution. Paired with accessories such as tubing, filters, valves, and connectors, they create clean, balanced water environments ideal for koi ponds of all sizes.

Air Pumps - Charles Austen air pumps excel at boosting oxygen levels. Together with accessories like air tubing, air stones, valves, and connectors, they deliver consistent aeration that supports healthier fish and reduces stress. Excellent for both traditional koi ponds and aquaponic setups.

Aquatic Accessories - From high-quality tubing and filters to valves, connectors, and air stones, Charles Austen accessories ensure your entire system runs smoothly and efficiently.

Aquatic Chillers - Warm water can quickly lower oxygen and stress your koi. Charles Austen aquatic chillers maintain stable temperatures, improving water quality and supporting better overall system performance.

Key Benefits of Charles Austen Koi Pond Pumps

• Exceptional energy efficiency with strong flow rates
• Quiet operation perfect for residential gardens
• Reliable, durable construction for year-round use
• Versatile for koi ponds, aquariums, and hydroponics
• Easy integration with filters, fountains, and waterfalls

How to Choose the Best Pump for Your Pond

Calculate your pond volume and aim for a turnover rate of at least once per hour (ideally 1.5–2 times for koi). Consider maximum head height and whether you need extra power for features like waterfalls or UV filters.

FAQs

1. What size pump do I need for a koi pond? For best results, choose a pump that can turn over your pond volume 1–2 times per hour. A 2000-gallon pond typically needs a 2000–4000 GPH pump depending on additional features.

2. Are Charles Austen pumps energy efficient? Yes. They are designed to deliver high performance while using minimal electricity, helping you save money long-term.

3. Can these pumps be used for hydroponics too? Absolutely. The same water and air pumps work excellently in hydroponic and aquaponic systems.

4. How long do these pumps last? With proper maintenance, Charles Austen pumps are built for continuous, reliable performance for many years.

Ready to upgrade your koi pond? Explore the full Charles Austen aquatic range today — including their powerful water pumps, air pumps, accessories, and chillers — and enjoy clearer water and healthier fish with lower running costs.

Shop Aquatics & Hydroponics Range at Waterwise Pumps