How to Purify Water Without Power: UK Emergency Options
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...
Be Ready UK: How Much Water to Store for 3 Days
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...
How to Read PFOS and PFOA Water Filter Test Reports
A “PFOS/PFOA tested” report answers a narrow question. Learn the six fields to check before trusting a filter claim.
"What Can Gravity Water Filters Reduce? An Evidence Guide to the Claims"
Direct answer: What a gravity water filter reduces depends on the exact cartridge, the target contaminant, the test method, and the conditions — not on the brand or the tank. A responsible claim names all four. This guide shows how...
"Is a 2.25-Gallon Gravity Water Filter Right for Your Household?"
Direct answer: A 2.25-gallon countertop gravity filter is a common size for household drinking and cooking water. Among the in-stock 2.25-gallon systems here, the BO Series 2.25 documents a household guidance of roughly 3–5 people. Whether it fits your home...
"Berkey Alternative Evidence Checklist: How to Verify What a Gravity Filter Actually Reduces"
Direct answer: When you shop for a "Berkey alternative," the single most useful step is not picking a brand — it is verifying the claim. A defensible gravity-filter claim names the exact filter model, the specific substance it was tested...
PFAS Water Filter Claims: A UK Buyer’s Evidence Checklist
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...
Countertop Reverse Osmosis Water Filters UK: What They Remove, Cost & Which to Choose
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...
Countertop Water Filters UK: Gravity vs RO — Which Is Right for You?
By Pete Miller — Purewell Water Specialist · Updated September 18, 2026 Countertop water filters in the UK at a glance A countertop water filter sits on your worktop and treats water at the point of use, but the label...
Water Filter Certifications: NSF 42, 53, 58 & 372
Evidence guide / US edition What NSF/ANSI 42, 53, 58 and 372 tell you—and how to verify the claim on the filter you actually buy. By Pete Miller — Purewell Water Specialist · Published September 17, 2026 42Taste & odor...
Purewell vs Berkey: Filters, Costs & Buying Guide
Comparison guide / US edition A practical comparison of filter options, everyday use and the evidence to check before you buy. By Pete Miller — Purewell Water Specialist · Published September 17, 2026 AI-assisted kitchen illustration based on a Purewell...
Water Filtration System for Home: How to Choose the Right Type
Choosing the right water filtration system depends on your water source, filtration goal, available space, and daily water use. This guide compares gravity, reverse osmosis, under-sink, whole house, and portable systems so you can choose a practical setup for...

















