Water filtration guides
Written to be useful before you spend anything, and honest about when the answer is that you do not need to buy anything at all.
What is hard water?
Hard water explained without the marketing: what causes it, how it is measured, what it actually does to your home, and whether it is bad for you.
Hard Water HubWater softener or scale inhibitor?
The two products solve different problems and cost an order of magnitude apart. Here is how to tell which one your household actually needs.
Hard Water HubHow to test water hardness at home
Three ways to find out how hard your water is, from free to accurate, and why your water company's figure may not match your tap.
Hard Water HubIs hard water bad for your boiler?
What limescale actually does inside a boiler, why manufacturers make scale protection a warranty condition, and what to fit.
Hard Water HubHow to choose a water softener
Sizing, metered versus timed, block versus granular salt, and the installation details that separate a good job from a cheap one.
Water filters for rented homes
Which filtration is genuinely removable, what needs the landlord's permission, and what to avoid entirely in a rented property.
Choosing a FilterReverse osmosis explained
How RO works, what it removes, what it wastes, and whether a UK household on mains water actually needs it.
Choosing a FilterWater filtration for landlords
What is worth fitting in a rented property, what protects your boiler and appliances, and what to avoid taking on.
DIY Installation Guides
What you can fit yourself, what you should not, and how to tell the difference.
HubDo I need a plumber to install a water filter?
An honest breakdown by product type of what is a reasonable DIY job, what genuinely needs a plumber, and where the line sits.
DIY Installation GuidesFitting an under-sink water filter yourself
A step-by-step guide to fitting an under-sink water filter, the tools you need, and the two situations where you should stop and call someone.
Water filtration for cafés
Why espresso machines fail in hard water areas, what filtration a café actually needs, and what the maintenance records are for.
Commercial Water FiltrationCommercial water filtration: a maintenance checklist
What to check, how often, and what records to keep for a commercial filtration installation.
Coming next
We publish a guide when it is written, not when the slug is reserved. These 41 are commissioned and in the queue — you will not find stub pages for them on this site.
- UK hard water map: which areas have hard water?
- Best water filter for drinking water in the UK
- Limescale prevention: what works and what does not
- Whole-house water filtration: a complete guide
- How to replace an inline fridge filter
- How much does water softener installation cost?
- Salt vs salt-free water softeners: the honest comparison
- How to maintain a water softener
- Does hard water affect your skin?
- Does hard water affect your hair?
- TDS meters explained
- Water hardness test kits explained
- Carbon water filters explained
- Sediment filters explained
- UV water treatment explained
- Reverse osmosis maintenance guide
- Whole-house filter maintenance
- Water filtration for restaurants
- Water filtration for offices
- Water filters for salons and barbers
- Water filters for gyms and leisure centres
- Water filters for coffee machines
- Commercial water filtration compliance basics
- Best water filters for hard water areas
- Best water filters for landlords
- Best water filters for commercial kitchens
- New-build home water filtration guide
- Protecting your boiler from limescale
- Kettle limescale: what actually works
- Shower filter buying guide
- Filter tap buying guide
- Replacement cartridge guide: finding the right one
- DIY plumbing mistakes to avoid
- When to call a plumber
- Water filter installation cost by product type
- Best products for very hard water areas
- Drinking water filter maintenance
- How to choose a water filter installer
- WaterSafe, WIAPS and TrustMark explained
- The Water Fittings Regulations, explained for homeowners
- Treating a private water supply: wells and boreholes