Practical, research-backed guides on filtering your tap water, shower and bath, what's actually in your city's supply, and the science of hydrogen water. Written in Sydney by the HolyH₂O team.
Australian tap water contains an average of 49.67 microplastic particles per litre — and a March 2026 NSW study found microplastics in every single coastal waterway tested across the state....
Australian tap water contains an average of 49.67 microplastic particles per litre — and a March 2026 NSW study found microplastics in every single coastal waterway tested across the state....
From 1 May 2026, new Australian rules require lead-free tapware in new builds — but lead-containing plumbing products remain legal to install until 2028 after a controversial regulatory extension. The...
From 1 May 2026, new Australian rules require lead-free tapware in new builds — but lead-containing plumbing products remain legal to install until 2028 after a controversial regulatory extension. The...
Chlorine is added to every Australian municipal water supply — and for good reason. It kills bacteria and keeps water safe from source to tap. But it also affects the...
Chlorine is added to every Australian municipal water supply — and for good reason. It kills bacteria and keeps water safe from source to tap. But it also affects the...
A 2025 registered RCT found hydrogen water significantly reduced cravings, improved sleep quality, lowered cholesterol, and raised GLP-1 levels in obese adults. Hydrogen Water and Weight Loss: What the...
A 2025 registered RCT found hydrogen water significantly reduced cravings, improved sleep quality, lowered cholesterol, and raised GLP-1 levels in obese adults. Hydrogen Water and Weight Loss: What the...
Perth tops the list at around 179 mg/L, with Adelaide second at 134. Most other capitals are soft or very soft, which catches a lot of people out. Here's hardness...
Perth tops the list at around 179 mg/L, with Adelaide second at 134. Most other capitals are soft or very soft, which catches a lot of people out. Here's hardness...
The "8 glasses a day" rule has been repeated so often it feels like fact — but it was never based on rigorous research and it doesn't account for your...
The "8 glasses a day" rule has been repeated so often it feels like fact — but it was never based on rigorous research and it doesn't account for your...
