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.
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 —...
Perth tap water is safe to drink and meets Australian Drinking Water Guidelines. But it is unlike any other Australian capital's water supply — dominated by groundwater from limestone aquifers,...
Perth tap water is safe to drink and meets Australian Drinking Water Guidelines. But it is unlike any other Australian capital's water supply — dominated by groundwater from limestone aquifers,...
Brisbane tap water is safe to drink — Seqwater's 2024–25 annual report confirms compliance across all regulated parameters. But unlike Melbourne, Brisbane uses chloramine as its disinfectant across 100% of...
Brisbane tap water is safe to drink — Seqwater's 2024–25 annual report confirms compliance across all regulated parameters. But unlike Melbourne, Brisbane uses chloramine as its disinfectant across 100% of...
