World · India Bureau
Clean Tank but Foul Water? Here's What May Be Wrong
Even after cleaning your water storage tank, unpleasant odours persisting from taps may indicate problems beyond the tank itself. Experts say pipelines, geysers, filters and drain systems are common culprits requiring targeted intervention.
LSN India ·

Householders across India frequently report foul-smelling water despite regular tank maintenance, a problem that often stems from overlooked components in home water systems. While a dirty storage tank is an obvious source of contamination, several other parts of the water supply chain can generate persistent odours if left unchecked.
Plumbing professionals identify five primary sources of water odour issues. Corroded or deteriorating pipes accumulate bacterial growth and mineral deposits over time, releasing sulphur-like smells. Hot water geysers can harbour sediment and microbial buildup in their tanks. Clogged or poorly maintained water filters become breeding grounds for odour-causing bacteria. Drain pipes and sink traps, if not regularly flushed, allow stagnant water and decomposing organic matter to emit foul odours that travel back through the plumbing system. Aged pipeline networks, common in older residential areas, present particular challenges as internal corrosion progresses.
Addressing these issues requires a systematic approach. Beyond tank cleaning, homeowners should flush and inspect pipelines, descale geysers periodically, and replace water filters according to manufacturer recommendations. Installing activated carbon filters or multi-stage filtration systems can effectively neutralise odours at the point of use. Regular drain maintenance using appropriate cleaning agents helps prevent stagnation.
Experts recommend professional inspection of entire water systems if odours persist despite these interventions, as hidden pipe damage or bacterial contamination may require specialised treatment. Investing in quality water filtration systems tailored to local water conditions remains an effective long-term solution for maintaining fresh, odour-free water supply.