About FilterAuthority
FilterAuthority was created to help UK households understand water quality and filtration — clearly, honestly, and without sales pressure.
The site exists to bridge the gap between technical water treatment knowledge and everyday household decisions, using plain English rather than marketing hype.
How This Started
Twenty years ago, I walked into a water filter shop after reading a newspaper article about lead pipes in older homes. The salesman convinced me I needed "the best system on the market" — a £400 setup with features I didn't understand and maintenance schedules I couldn't keep up with.
Two years later, I replaced it with a simpler system that cost £150 and did exactly what I needed. That experience stuck with me: most people don't need the most expensive filter—they need the right filter for their specific situation.
That's why Filter Authority exists. I want to help families avoid the mistakes I made and find filtration solutions that actually fit their lives, their budgets, and their water quality concerns—without the sales pressure or fear-mongering that's so common in this industry.
Who's Behind FilterAuthority
My name is Keith, and I run FilterAuthority.co.uk.
I'm a trained mechanical engineer with over 20 years of hands-on experience working with reverse osmosis (RO) and water filtration systems. My background isn't specifically in the water industry—it's in mechanical engineering—but that's actually been an advantage.
My career has given me extensive real-world exposure to filtration systems, pressure systems, membranes, flow rates, maintenance issues, and system failures. I've seen what works, what breaks, and what's just marketing hype. I understand the engineering principles behind these systems, but I also understand the practical realities of living with them—the things marketing brochures rarely mention.
I'm not affiliated with any water filter manufacturer or retailer. I don't run a plumbing business. I don't sell installation services. This site exists purely to help UK families make informed decisions about their water—and to save them from the expensive mistakes I made when I was starting out.
This combination of engineering training, long-term filtration experience, and complete independence gives me a grounded, realistic perspective on what water filtration systems can—and cannot—do in everyday use.
Why FilterAuthority Exists
Over the years, I noticed a growing problem. Every time someone asked me about water filters, they'd tell me the same frustrating stories:
At the same time, concerns around PFAS, microplastics, hard water, and private water supplies were increasing—but clear, honest explanations were not. People were either being scared into buying expensive systems they didn't need, or they were so confused by conflicting information that they did nothing at all.
I realized there was a gap in the market for a resource that treated people like intelligent adults who just needed clear information—not sales targets.
FilterAuthority was created to offer:
Engineering-Led, Practical Approach
FilterAuthority takes an engineering-led view of filtration:
This approach helps readers avoid over-spending, under-filtering, or choosing systems that don't suit their home.
What FilterAuthority Is — and Isn't
FilterAuthority IS:
FilterAuthority is NOT:
How FilterAuthority Is Funded
Some links on this site are affiliate links. If you choose to purchase through them, FilterAuthority may earn a small commission — at no extra cost to you.
This helps support:
Affiliate links do not influence recommendations.
The Filter Assistant
To further help readers navigate complex choices, FilterAuthority provides a Filter Assistant — a guided tool that asks a few simple questions and suggests suitable filtration approaches based on:
It is designed to support decision-making, not pressure it.
What You Can Expect From Me
If you're reading this site, here's what I promise you:
I won't scare you into buying anything
UK tap water is legally safe to drink. If you want to improve it further, I'll help you understand your options—but I won't use fear tactics or exaggerate risks to push products.
I'll tell you when you don't need something
If a £50 carbon filter will solve your problem, I'll tell you that—even if there's a £400 RO system with a higher affiliate commission. Your trust is worth more to me than a quick sale.
I'll explain the trade-offs honestly
Every filtration system has pros and cons. RO systems waste water. Carbon filters need regular replacement. Water softeners add sodium. I'll explain all of this clearly so you can make an informed decision.
I'll keep it practical and realistic
I care about nature, animals, and protecting families—but I also understand that most people need solutions that fit their budget, their home, and their lifestyle. I'll help you find that balance.
That's my commitment to you. No hype. No pressure. Just honest guidance from someone who's been working with these systems for 20+ years.
A Final Word
FilterAuthority exists to help people understand first, then decide.
If you're here because you want clearer water, fewer unknowns, and practical guidance rooted in experience — you're in the right place.