Water Treatment & Water Testing in Dhaka
Dhaka's water supply is a mix of WASA municipal connections and a large number of private and semi-public deep tube wells, and water quality can vary considerably even between neighbouring buildings depending on which source and how old the internal plumbing is.
Common water problems in Dhaka
Common issues include intermittent WASA supply quality (occasional turbidity or taste/odour changes, particularly during monsoon season or supply disruptions), ageing internal plumbing and storage tanks that can reintroduce contamination after treatment, and — for buildings relying on deep tube wells — iron and hardness typical of Dhaka-area groundwater. Rapid, dense construction also means many buildings share underground/overhead tank arrangements serving many households, where tank condition matters as much as the incoming water quality.
Apartment buildings and housing societies
Dhaka's dominant residential pattern is multi-unit apartment buildings, most drawing from a shared underground reservoir and overhead tank. Central filtration or RO serving the whole building, combined with a proper tank cleaning and inspection schedule, is generally more practical here than per-unit systems — see our apartment building water treatment guide in Insights for the detail.
Commercial buildings
Offices, restaurants, hotels and hospitals across Dhaka each have distinct water requirements depending on their specific use — drinking water, kitchen/process water, and in hospitals, additional considerations for specialist departments. We assess based on the specific building type and actual demand rather than a generic commercial package.
Industrial areas
Dhaka and its surrounding industrial zones (including nearby Gazipur, Narayanganj and Savar) include garment/textile finishing, food processing and various manufacturing operations, each needing water treatment matched to their specific process and effluent characteristics — see our industrial water treatment guides in Insights.
Water testing in Dhaka
Given how much Dhaka water quality can vary building-to-building, we recommend testing the specific source (WASA line, tube well, or both) rather than assuming based on the general area or a neighbouring building's experience.
What to include with your enquiry
- Your specific area/upazila within Dhaka
- Residential, commercial or industrial application
- Water source (tube well, WASA/municipal supply, or both)
- Any available laboratory test report
- Approximate daily water requirement