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18 Articles

Reverse Osmosis ×

Dr. Cian Gallagher

What Do Water Filters Remove?

Each filter type removes a different set of substances. Activated carbon mainly improves taste and removes chlorine. Reverse osmosis removes most dissolved salts, heavy metals and many contaminants. W...

Carbon Filters Filtered Water Home Water Filtration Reverse Osmosis Sediment Filters Water Softener

16 Oct 2026

Is Filtering Tap Water Worth It?

For many Irish households, filtering tap water is worth it. A good filter can improve taste, reduce some substances you would rather not drink, and cut the cost and plastic waste of buying bottled wat...

Clean Drinking Water Filtered Water Reverse Osmosis Tap Water

14 Oct 2026

Softener or Reverse Osmosis: Which Does Your Home Need?

Choose a water softener if limescale, dry skin, and worn appliances are your main concerns. Choose reverse osmosis if you want cleaner, better tasting water at the kitchen tap. Many Irish families end...

Clean Drinking Water Reverse Osmosis Soft Water Water Softener Whole House Water Filter

12 Oct 2026

Is A Standard Carbon Filter The Same As A Reverse Osmosis System?

People often ask me this question. And the answer matters more than you might think. Over 24 years in the water filtration industry, I've seen thousands of families choose the wrong system simply beca...

Carbon Filters Drinking Water Home Water RO System Reverse Osmosis Water Filtration Water Quality Water Treatment

5 Oct 2026

How Long Does a Reverse Osmosis Membrane Actually Last?

Most reverse osmosis membranes last around two years in Irish homes. On the ArkkZ Water Filtration System, the membrane is designed to last up to 24 months, with the pre filter changed every 12 months...

Drinking Water RO Maintenance RO Membranes Reverse Osmosis

25 Sept 2026

Dr. Cian Gallagher

Why You Need A Reverse Osmosis System If You Have A Private Well?

Household wells in Ireland sit outside the drinking water regulations, so nobody tests them unless you do. A reverse osmosis system at your kitchen tap removes a wide range of dissolved contaminants f...

Drinking Water Home Water Private Well Renewell Water Reverse Osmosis Water Filtration Water Quality Water Treatment

21 Sept 2026

Dr. Eoghan Kelly

Is Reverse Osmosis Water Safe for Babies?

For most families in Ireland, water from a well maintained reverse osmosis (RO) system can be used to make up baby formula. You should still boil it and make the bottle with water that is at least 70°...

Baby Health Drinking Water Drinking Water Safety Health & Wellness Reverse Osmosis

16 Sept 2026

ArkkPure & ArkkZ: Everything You Need to Know

Every so often a customer sends our team a photo of their new system with one simple question. Why does my invoice say ArkkZ when the unit says ArkkPure? It is a fair thing to ask. I would ask it myse...

Arkk Pure Arkkz FAQ Reverse Osmosis

10 Sept 2026

Common Mistakes to Avoid When Buying an RO System

The most common mistakes when buying an RO system are picking on price alone, choosing the wrong size, and ignoring ongoing filter costs . Skipping installation checks and forgetting to ask about wate...

Arkkz Clean Drinking Water Filtered Water Reverse Osmosis Water Filter

24 Aug 2026

Can You Get a Water Filter if You Rent a Home?

Renting does not rule out a proper water filter. A complete reverse osmosis system can be installed by using a small dedicated tap which fits into one of the spare holes that most sinks already have. ...

Clean Drinking Water Filtered Water RO Water Filters Reverse Osmosis Single tap Under Sink Water Filter triple faucet

18 Aug 2026

Dr. Cian Gallagher

Does Reverse Osmosis Water Remove Healthy Minerals?

Yes. Reverse Osmosis water has lost most of its calcium and magnesium. For most people this is not a real worry. Food gives us most of our calcium and magnesium, not water. The World Health Organizati...

Clean Drinking Water Essential Minerals Filtered Water Remineralizer Reverse Osmosis

11 Aug 2026

How Do You Know If Your RO Membrane Is Bad?

How Do You Know If Your RO Membrane Is Bad? Quick answer: A bad RO membrane usually shows itself through a change in taste, slower water flow, more frequent filter changes, or a rising TDS reading if ...

Filtered Water RO Membranes RO System RO performance Reverse Osmosis TDS testing Water Filtration Water Purifier membrane replacement pre-filter maintenance

4 Aug 2026

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