BlogGuidesBy Hannah Reid3 November 2026

How Do You Filter Water From a Mixer Tap?

You filter water from a mixer tap by fitting a filter to the spout outlet, and the Flowpure stainless steel tap filter is made for that job, with five thread adapters in the box. Check which adapter matches your outlet, fit it, and pour. The Drinking Water Inspectorate names removing unpleasant tastes and odours as the most common reason people buy a filter, so I would start there. If your first cup of tea of the day tastes faintly of a swimming pool, that is the everyday problem a filter is there to solve. The sections below cover the fit, the water, the comparison with other options and the care.

Can You Add a Filter to Your Existing Mixer Tap?

You can add the Flowpure stainless steel tap filter to an existing mixer tap if the outlet matches the filter or one of its five supplied thread adapters. Take a clear photograph of the end of your spout and note the tap model if you know it. Then compare the outlet with the adapters before you order, rather than relying on a general description such as kitchen mixer. The body is 304 stainless steel, which suits a kitchen that sees daily use. In my opinion, settling the connection first makes everything that follows far simpler.

Does a Mixer Tap Filter Treat Hot and Cold Water?

Check the operating temperature in the instructions supplied with the Flowpure stainless steel tap filter, because that tells you which mixer settings suit it. A mixer blends two supplies at one spout, so the temperature you choose matters. A dedicated filter tap has its own filtered water lever, while a filter fitted to your existing spout works with the tap you already own. I would keep the instructions near the sink so that everyone in the house follows the same routine, and I would choose the setting the instructions recommend for drinking and cooking water.

What Does the Stainless Steel Filter Do Well?

The Flowpure stainless steel tap filter removes chlorine, VOCs and unpleasant tastes and odours, and it blocks sediment, rust and visible particles. The Drinking Water Inspectorate explains that activated carbon filters address taste and odour, and it says tap water in England and Wales is safe to drink. Meeting standards and tasting clean are different things, and that gap is exactly where this filter earns its place. The stainless steel model also targets lead and trace metals, but test first. The Drinking Water Inspectorate advises getting a free drinking water quality report from your water company, and I would ask whether it offers a free lead testing kit or filter programme. The Flowpure stainless steel unit is a filter, so softening and descaling remain separate jobs.

How Does a Tap Filter Compare With Jugs and Under Sink Systems?

A tap filter sits on the spout you already use, so there is no jug to refill and no cabinet space to give up. A 2026 study of six European filter jug systems, published in Water Research X by Lucarini and colleagues, found marked differences in organic contaminant removal between them, with four performing well. That tells me a jug is only as good as the one you choose and the habit of refilling it. For under sink reverse osmosis units, the Drinking Water Inspectorate says they waste 20 to 30 per cent of incoming flow and that owners must tell their water company before installing one. In my opinion, a tap filter is the simpler everyday answer.

What Should You Check Before Fitting and Changing Cartridges?

The Drinking Water Inspectorate says products must comply with the Water Supply (Water Fittings) Regulations 1999 and advises using a qualified plumber. I would follow that advice and confirm the fitting requirements, including the pressure needs for your own system and whether you have a combi boiler, before installation. For the cartridge, plan around about 1,200 litres and up to three months, whichever comes first. The Drinking Water Inspectorate warns that cartridges must be changed on the manufacturer's schedule, or they stop working. I would write both limits on a calendar the day I fitted it. Filtering costs under 2p a litre.

Why Would I Choose the Flowpure Stainless Steel Filter?

I would choose the Flowpure stainless steel tap filter because it brings the benefits I want to the tap I already use: better taste and smell, less chlorine, and a barrier against sediment and rust. The stainless steel body and five adapters give you a realistic chance of matching an existing mixer without replacing the tap. In my opinion, the filter is worth having because it improves the water you actually drink and cook with every day, and it comes with a Lifetime Guarantee. Photograph your spout, check the adapters against it, and order the stainless steel unit once the match is clear.

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