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.
With over 1,500 peer-reviewed studies behind it, molecular hydrogen isn't a wellness trend. The HolyH₂O™ Hydronizer Pitcher infuses 2 litres of antioxidant-rich hydrogen water in just 3 minutes — no...
With over 1,500 peer-reviewed studies behind it, molecular hydrogen isn't a wellness trend. The HolyH₂O™ Hydronizer Pitcher infuses 2 litres of antioxidant-rich hydrogen water in just 3 minutes — no...
Approximately 2.6 million Australian households rely on rainwater tanks as their primary or supplementary drinking water source. Most assume tank water is clean because it comes from rain — but...
Approximately 2.6 million Australian households rely on rainwater tanks as their primary or supplementary drinking water source. Most assume tank water is clean because it comes from rain — but...
In March 2026, Australia's national building authority delayed its lead-free plumbing mandate by two more years — meaning plumbing products with up to 6% lead content remain legal to install...
In March 2026, Australia's national building authority delayed its lead-free plumbing mandate by two more years — meaning plumbing products with up to 6% lead content remain legal to install...
Every Australian capital city fluoridates its water. Sydney's concentration is the highest at 1.0 mg/L. Melbourne sits at 0.9 mg/L. Brisbane, Perth, and Adelaide are lower. Standard activated carbon —...
Every Australian capital city fluoridates its water. Sydney's concentration is the highest at 1.0 mg/L. Melbourne sits at 0.9 mg/L. Brisbane, Perth, and Adelaide are lower. Standard activated carbon —...
KDF, carbon, catalytic carbon, activated alumina, and reverse osmosis are not the same tool. KDF is the shower filter media that works at Australian shower flow rates. Standard carbon handles...
KDF, carbon, catalytic carbon, activated alumina, and reverse osmosis are not the same tool. KDF is the shower filter media that works at Australian shower flow rates. Standard carbon handles...
Adelaide has Australia's highest TDS at 480+ mg/L, uses chloramine across its metropolitan network, and sources up to 90% of its supply from the River Murray in drought years —...
Adelaide has Australia's highest TDS at 480+ mg/L, uses chloramine across its metropolitan network, and sources up to 90% of its supply from the River Murray in drought years —...
