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Water Filtration Guides & Resources

Expert tips, product guides, and insights on water for a cleaner lifestyle at home and outdoors.

Microplastics in Drinking Water: What New Research Means for Your Filter

Microplastics in Drinking Water: What New Research Means for Your Filter

  • by RENJIE

A 2026 Nature study found that some microplastics can generate reactive molecules when they contact water. Here is what the research does and does not show, plus how to evaluate a water filter for microplastic reduction.

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Purewell K Series 2.25-gallon gravity water filter

How Gravity Water Filters Work Without Electricity

  • by Pete Miller — Purewell Water Specialist
By Pete Miller — Purewell Water Specialist · Last Updated: October 2026 A gravity water filter cleans water using nothing but gravity — no electricity, no pump, no plumbing. That makes it useful both for better everyday tap water and...

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Purewell K Series 2.25-gallon gravity water filter for water storage

72-Hour Water Storage Checklist for UK Homes

  • by Pete Miller — Purewell Water Specialist
By Pete Miller — Purewell Water Specialist · Last Updated: October 2026 Following the UK Be Ready advice, a 72-hour water reserve is one of the highest-value items you can prep. This checklist turns the guidance into a concrete, rotatable...

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How to Purify Water Without Power: UK Emergency Options

How to Purify Water Without Power: UK Emergency Options

  • by Pete Miller — Purewell Water Specialist
By Pete Miller — Purewell Water Specialist · Last Updated: October 2026 A power cut doesn't usually stop your tap, but it can knock out the pumps and treatment steps that keep water safe — and it stops any electric...

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Be Ready UK: How Much Water to Store for 3 Days

Be Ready UK: How Much Water to Store for 3 Days

  • by Pete Miller — Purewell Water Specialist
By Pete Miller — Purewell Water Specialist · Last Updated: October 2026 The UK government's Be Ready campaign (launched by the Cabinet Office in October 2026) asks households to keep at least 72 hours of essential supplies. For drinking water...

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How to Read PFOS and PFOA Water Filter Test Reports

How to Read PFOS and PFOA Water Filter Test Reports

  • by Pete Miller — Purewell Water Specialist
A “PFOS/PFOA tested” report answers a narrow question. Learn the six fields to check before trusting a filter claim.

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PFAS Water Filter Claims: A UK Buyer’s Evidence Checklist

PFAS Water Filter Claims: A UK Buyer’s Evidence Checklist

  • by Pete Miller — Purewell Water Specialist
PFAS evidence guide / UK A practical way to check the exact cartridge, named substances, test conditions, capacity and maintenance evidence before you buy. By Pete Miller — Purewell Water SpecialistPrepared 23 September 2026 6 checksModel · substance · evidence...

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Purewell countertop reverse osmosis water filter

Countertop Reverse Osmosis Water Filters UK: What They Remove, Cost & Which to Choose

  • by Pete Miller — Purewell Water Specialist
By Pete Miller — Purewell Water Specialist · Updated September 18, 2026 Countertop reverse osmosis water filters in the UK at a glance A countertop reverse osmosis (RO) water filter is the most thorough point-of-use option you can run without...

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Does a Water Filter Remove PFAS? Carbon, RO & Gravity Compared

Does a Water Filter Remove PFAS? Carbon, RO & Gravity Compared

  • by Pete Miller — Purewell Water Specialist

Not all filters tackle PFAS. See which technologies (activated carbon, RO, gravity) actually reduce "forever chemicals" — and what to check.

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PFAS in London Tap Water 2026: Levels, Risks & What Actually Helps

PFAS in London Tap Water 2026: Levels, Risks & What Actually Helps

  • by Pete Miller — Purewell Water Specialist
  • 1 comment

Are there PFAS in London tap water in 2026? Latest monitoring, health context and the filters that reduce 'forever chemicals'.

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Thames Water PFOS Trial: What London Households Should Know

Thames Water PFOS Trial: What London Households Should Know

  • by Pete Miller — Purewell Water Specialist

Thames Water and UK suppliers face growing PFOS/PFAS scrutiny. Understand what it means for your tap water and how filtration helps.

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Hard water vs soft water differences in a home kitchen

Hard Water vs. Soft Water: What Is the Difference?

  • by Purewell

Hard water contains higher levels of calcium and magnesium, while soft water contains fewer hardness minerals. This guide explains how each water type affects taste, scale, soap performance, plumbing, and appliances, and compares gravity filtration, reverse osmosis, and water softeners...

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