Water Filtration Guides & Resources

"Is a 2.25-Gallon Gravity Water Filter Right for Your Household?"

14 Oct, 2026
by Pete Miller — Purewell Water Specialist

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 gravity water filter water filter evidence

"Berkey Alternative Evidence Checklist: How to Verify What a Gravity Filter Actually Reduces"

14 Oct, 2026
by Pete Miller — Purewell Water Specialist

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 UK water-quality

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

22 Sep, 2026
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...

Purewell countertop reverse osmosis water filter

PFAS UK water-quality

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

18 Sep, 2026
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...

Countertop Water Filters UK: Gravity vs RO — Which Is Right for You?

18 Sep, 2026
by Pete Miller — Purewell Water Specialist

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

18 Sep, 2026
by Pete Miller — Purewell Water Specialist

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

18 Sep, 2026
by Pete Miller — Purewell Water Specialist

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...

Gravity Water Filter Home Water Filtration Portable Water Filter Purewell Water Guide Reverse Osmosis Under Sink Water Filter Water Filtration System Whole House Water Filter

Water Filtration System for Home: How to Choose the Right Type

16 Sep, 2026
by RENJIE

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...

ceramic water filter UK water filtration

Ceramic Water Filters: How They Work & What They Remove

15 Sep, 2026
by Pete Miller — Purewell Water Specialist

How ceramic water filters work, what they reduce (sediment, particles) and what they can't (PFAS, chlorine) — plus ceramic vs carbon and RO compared for UK homes.

Purewell K Series 2.25-gallon gravity water filter

buying guide gravity water filter UK

Best Gravity Water Filter UK: What to Look for in 2026

15 Sep, 2026
by Pete Miller — Purewell Water Specialist

Compare gravity water filter systems for UK homes: filtration media, capacity, flow rate, running cost and replacement filters — plus which size suits your household.