You track your sleep, training and diet – now test what you drink most. Get your Water Health Score, what it means for you, and a Care Plan to improve it.
London’s mains water meets UK regulatory standards when it leaves the treatment works – but no statutory test covers the final stretch into your home, where Victorian mains, building pipework, tanks and fittings change what actually reaches your glass. That last stretch is what WaterGraph measures: a 12-parameter lab test at your tap, scored and explained.
Lead from old pipes, copper from household plumbing, nitrate from farm runoff, bacteria in tanks and filters, plus hardness – the grid is monitored, but your tap isn’t.
Your Water Health Score is WaterGraph’s 0–100 measure of the water at your kitchen tap, built from a 12-parameter laboratory panel and a published methodology developed with researchers at Imperial College London and the University of Cambridge. One number tells you where you stand; the parameter-by-parameter detail tells you why. Read the full methodology →
We test 12 parameters, built for long-term health relevance: E. coli, lead, copper, zinc, iron, manganese, a wider heavy-metals screen, nitrate, fluoride, hardness, alkalinity and pH. Every threshold is published with our methodology – nothing is a black box.
We get in touch to arrange your test. A WaterGraph technician collects a sample from your kitchen tap – in and out in five minutes – and within five days your Water Health Score, full results and Care Plan arrive in the app.
A filter changes some parameters and not others – and without a before-and-after measurement, you can’t know which. Testing shows what your filter is actually doing at your tap, what it’s missing, and whether it’s still doing it as the device ages.
No. You pay once. The 12-Month Assurance simply lasts a year – two tests, alerts, insights, your Watermark. When it ends, renewing is your choice.