BlogGuidesBy Hannah Reid2 November 2026

How Can You Filter Your Tap Water at Home in the UK?

You can filter tap water at home in the UK with a jug, a tap mounted filter, an under sink system or a filtered water mixer tap. For the kitchen tap, I would choose the Flowpure stainless steel tap filter, because it reduces chlorine and unpleasant tastes and odours while catching sediment and rust. The Drinking Water Inspectorate says that removing unpleasant taste and odour is the most common reason people buy a filter, so if a chlorine smell in your morning glass prompted the question, you are in good company. Below, I compare the formats, explain what the stainless steel filter does, and set out how to fit it and look after it.

Which Type of Home Water Filter Suits a UK Kitchen?

A jug is the simplest start, a tap mounted filter sits where you fill the glass, an under sink system is plumbed in out of sight, and a filtered water mixer tap gives you a dedicated spout. The Drinking Water Inspectorate notes that some jug filters contain ion exchange resin, which reduces temporary hardness and so helps limit kettle scale and scum on tea. Under sink systems and mixer taps involve plumbing, and the inspectorate advises using a qualified plumber for installation, so allow time and cost for that. In my opinion, a tap mounted stainless steel filter is the most direct route, because it attaches to the tap you already use.

Reverse osmosis is a larger commitment. The Drinking Water Inspectorate says it wastes about 20 to 30 per cent of the incoming water, significantly reduces pressure, and requires you to notify your water company before installation. On a metered supply it can raise bills by up to a third, according to the same body. For a household that mainly wants better tasting water from the kitchen tap, I think a carbon based tap filter is the simpler answer, and the inspectorate itself recommends choosing a filter with activated carbon for taste and odour.

What Does the Flowpure Stainless Steel Filter Do for Your Water?

The Flowpure stainless steel tap filter has a 304 stainless steel body and is made to reduce chlorine, VOCs and unpleasant tastes and odours, while blocking sediment, rust and visible particles. In my opinion, one clear job is easier to trust than a long list of promises. Water companies in England and Wales must supply wholesome water, test it regularly and publish the results, as the Drinking Water Inspectorate explains. Meeting standards and tasting clean are different things, and this filter is there for the second. The inspectorate also notes that planned mains maintenance can cause temporary colour or particles, which is exactly where sediment and rust filtering earns its place.

What About Lead and Trace Metals?

The stainless steel model targets lead and trace metals, and I would always test first. The UK Health Security Agency, in guidance dated 8 October 2024, gives the prescribed limit for lead in drinking water as 10 micrograms per litre, and says homes built before 1970 may have lead pipes. The Drinking Water Inspectorate says your water company can provide a free drinking water quality report for your supply, which is a sensible first read before you buy any filter. Alongside that, the UK Health Security Agency advises running the kitchen tap before drinking or cooking if water has stood overnight, and a full washing up bowl is usually enough.

How Do You Fit a Tap Filter at Home?

Begin with the thread on your tap. The Flowpure stainless steel tap filter comes with 5 thread adapters, so the first job is finding the one that matches your spout, and I would read the fitting instructions through before attaching anything. Once it is on, follow the first use steps in those instructions, and keep them somewhere easy to find, because the same sheet will tell you how to change the cartridge later. If your tap has an unusual spout or you are unsure about the connection, a qualified plumber can check it, as the Drinking Water Inspectorate advises for installation work.

Does Hard Water Change Which Filter You Choose?

Hardness changes the question you ask about scale, and leaves the choice of drinking water filter largely where it was. The Drinking Water Inspectorate classes water containing 200 to 300 mg/l of calcium carbonate equivalent as hard and anything above 300 mg/l as very hard, so a tap in a hard water area may well leave limescale on the kettle. The Flowpure stainless steel tap filter does not soften water. In my opinion, the best arrangement covers two jobs: equipment built for scale, and the filter for taste, chlorine and particles. The inspectorate also advises keeping an unsoftened supply to the kitchen tap, which suits a tap filter well.

What Does It Cost to Run and When Should You Change the Cartridge?

The Flowpure stainless steel cartridge has an approximate capacity of 1,200 litres and lasts up to three months, so change it at whichever limit arrives first. The running cost is under 2p a litre, and the current price of the filter and its refills is shown on the product page. The Drinking Water Inspectorate warns that a filter can become ineffective if cartridges are not changed as instructed, so I would write the fitting date and the litre limit on the same note, and rely on that rather than on taste to tell you when the time has come.

I think a Flowpure stainless steel tap filter is worth having in a UK kitchen: it answers the most common reason people filter, it attaches at the tap you already use, and the care routine is a single diary entry. Check your supply report, match the adapter, fit the filter, and pour yourself a glass straight from the tap.

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