Key Factors That Affect Membrane Lifespan

1.Raw Water Quality

Higher levels of impurities, hardness, or chlorine in your tap water will cause the membrane to clog or degrade faster.

2.Daily Water Consumption

Households with higher water usage will naturally exhaust the membrane's total purification capacity sooner.

3.Maintenance of Pre-filters

The RO membrane relies on pre-filters (like PP cotton and activated carbon) to catch large particles and chlorine. If these are not replaced on time (usually every 3 to 12 months), the RO membrane will bear the brunt of the contamination and fail prematurely.

4.Installation Environment & Water Temperature

Cold water increases viscosity and reduces water flow, which can indirectly affect the membrane's performance and waste-water ratio.

How to Know When It Needs Replacing？

Modern RO purifiers often feature smart indicators, such as a smart faucet with a TDS (Total Dissolved Solids) display or an app notification, to remind you of the filter's status. Additionally, if you notice a significant drop in pure water flow, a change in taste, or an increase in waste water, it may be time to replace the membrane regardless of the recommended timeframe.