Flow Restrictor Replacement

The flow restrictor is a small but important component that controls the ratio of purified water to reject or waste water flowing out of your RO membrane housing, helping maintain the correct back-pressure needed for efficient filtration. A worn, clogged, or incorrectly sized flow restrictor can lead to too much water being wasted, reduced purified water output, or excess pressure on the membrane that shortens its lifespan. Signs that your flow restrictor may need replacement include a noticeably increased ratio of waste water to purified water, or reject water flow that seems either too fast or has stopped altogether. Our technicians identify the correct restrictor rating for your specific RO model based on membrane capacity and system design, since using an incorrectly sized restrictor can cause more harm than good. After replacement, we check the reject-to-purified water ratio to confirm it falls within the efficient operating range for your system, helping you get the most purified water output from every litre that enters your RO unit.