About Stonebrookfield
Stonebrookfield is a local information archive based in Singapore, dedicated to documenting the technical aspects of home water filtration, compiling publicly available PUB water quality data, and presenting practical maintenance guidance for residential water treatment systems.
Background
Singapore's water supply consistently ranks among the highest quality in the world. PUB, the national water agency, conducts over 500,000 tests annually and monitors more than 300 parameters across the entire supply chain. The agency has publicly stated that tap water is safe to drink directly without any further filtration.
Despite this, the residential water filtration market in Singapore has grown substantially, driven by a combination of ageing internal plumbing in older housing estates, personal taste preferences regarding chloramine residual, and marketing by filter manufacturers. Accurate, manufacturer-neutral information about how these systems function, what they actually remove, and how much they cost to maintain over time has not always been readily available in a consolidated format.
What This Archive Covers
- PUB water quality benchmarks and how Singapore's tap water compares to WHO guidelines
- Technical comparisons of filtration technologies: reverse osmosis, activated carbon, ultraviolet disinfection, and combination systems
- Replacement schedules, cost-per-litre calculations, and common installation mistakes
- Regulatory context, including PUB enforcement actions against misleading filter marketing claims
Editorial Approach
All content is based on publicly available data from PUB, WHO guidelines, EPA technical documents, and manufacturer specifications. Where specific products are mentioned, no commercial relationship or endorsement is implied. The editorial tone is neutral and descriptive, presenting facts and allowing readers to draw their own conclusions based on their specific circumstances.
Contact Information
Stonebrookfield Pte. Ltd.
1 Raffles Place, #20-61
One Raffles Place Tower 2
Singapore 048616
Phone: +65 6221 8833
Email: hello@stonebrookfield.com
UEN: 202412345D
Last updated: April 2026