Filtering Lead from Tap Water: Protect Your Family

What is lead in tap water?

Lead in tap water is not an uncommon problem in the Netherlands. According to estimates by the RIVM, 100,000 to 200,000 homes still have lead water pipes, almost all built before 1960. The contamination does not originate at the water company but in your own pipes: the longer water stands still (e.g., overnight), the more lead dissolves.

The legal standard for lead in drinking water in the Netherlands is 5 micrograms per liter, in accordance with the European Drinking Water Directive. In older homes with lead pipes, the lead content can easily exceed this standard, especially with stagnant water that has been in contact with lead for a long time.

How dangerous are lead pipes?

The World Health Organization (WHO) states that there is no safe lower limit for lead exposure. Even low concentrations can cause long-term health damage. In children, lead affects brain development even at concentrations that adults still consider low.

Long-term exposure to lead in drinking water can lead to reduced kidney function, increased blood pressure, nervous system problems, and, in children, permanent cognitive decline. The RIVM recommends taking immediate action if there is any doubt about lead pipes, especially in households with young children or pregnant women.

How to identify lead pipes?

Homes built before 1960 have an increased chance of having lead water pipes. You can check this yourself using a few characteristics:

• Color: lead pipes are grey (copper is reddish-brown, steel is silvery-grey and shiny).
• Surface: lead feels lumpy and uneven, not a smooth straight pipe.
• Connections: lead pipes do not have fittings; the connections are thickenings of the pipe itself.
• Sound: tap the pipe with a spoon; lead sounds dull, copper and steel sound clearer.

In doubt? Have a certified laboratory measure the lead content in your water. Recognized test agencies in the Netherlands include Waterlaboratorium and Water-Lab. A water test costs an average of 40 to 80 euros and provides certainty about the lead concentration in your specific situation.

Who is most at risk?

Lead in drinking water is a risk for everyone, but the GGD emphasizes that the following groups are particularly vulnerable and should take immediate action:

• Babies and young children up to 7 years old: lead affects brain development and can lead to permanent cognitive damage and behavioral problems.
• Pregnant women and women planning to conceive: lead can cross the placenta and harm the development of the unborn child.
• Elderly and people with kidney conditions: reduced excretion makes them more susceptible to lead accumulation in the body.
• Users of baby formula based on tap water: lead concentrates during boiling as water evaporates, increasing its concentration.

At PureFilter, we see that customers with young children or newborns in older homes most often opt for a certified inline solution, precisely because they want to take no risks, and bottled water is both expensive and environmentally harmful.

Does a water filter effectively filter lead from tap water?

The GGD rightly states that not all water filters are suitable for filtering lead from tap water. Many cheap filter jugs (like a standard Brita jug) are not, or barely, certified for lead removal. The difference lies in the certification and filter technology.

Only filters with NSF/ANSI 53 certification are independently tested and approved for the removal of lead and other heavy metals. NSF International is the globally recognized independent certification body for drinking water quality. A filter with this certificate has demonstrably proven to effectively remove lead under standardized test conditions.

The PureFilter Mineral+ is certified according to NSF 42, NSF 53, NSF 61, and NSF 372 and filters over 100 contaminants, including lead, PFAS, chlorine, pharmaceutical residues, microplastics, and nitrate. This is a significantly broader spectrum than most jug filters offer.

Benefits of an NSF-certified inline water filter for lead pipes

An inline water filter under the sink offers several practical advantages compared to a filter jug or bottled water, especially for structural use by an entire family:

• Always filtered water from the tap: you don't have to refill a jug or buy bottled water; every drop you get from the kitchen tap is filtered.
• NSF 53-certified for lead: independent proof of effectiveness, not just a marketing claim.
• Mineral enrichment via Swedish Mineral Rock: after filtration, calcium, magnesium, and potassium are added back to the water. This distinguishes PureFilter from most other filters, which remove minerals.
• Capacity of 15,000 to 20,000 liters per filter: with average use by a family of four, a filter lasts 6 to 12 months, after which you replace it with a replacement filter.
• Installation in 5 to 10 minutes: the PureFilter connects directly to the existing water supply under the sink, without tools or a plumber.
• Price: the PureFilter Mineral+ costs 149.90 euros; replacement filters are available from 49.90 euros.

PureFilter vs. other solutions for lead in tap water

Replacing lead pipes is always the structural solution. But as long as that hasn't happened, a certified inline filter offers the most practical and affordable daily protection. Read more about the comparison with other filter types on our page best water filter.

Frequently asked questions about filtering lead from tap water

Conclusion

Filtering lead from tap water is certainly possible, provided you choose a filter with NSF 53 certification. Homes built before 1960 are at the highest risk of elevated lead concentrations due to lead pipes. As long as these pipes have not been replaced, a certified inline water filter offers immediate, demonstrable protection for the entire family, including babies, young children, and pregnant women.

The PureFilter Mineral+ distinguishes itself from filter jugs and non-certified alternatives by being NSF 42, 53, 61, and 372 certified, and by returning minerals to the water via Swedish Mineral Rock in addition to filtering lead. Installation takes 5 to 10 minutes, and the cost is 149.90 euros including the first filter, with replacement filters available from 49.90 euros.