If your reverse osmosis (RO) system is continuously discharging water, it typically points to an issue with the check valve, which may be malfunctioning and failing to prevent backflow from the storage tank. This can result in unending water drainage. Other possible reasons for this problem include a defective shut-off valve, a clogged filter, or a storage tank that is overfilled and experiencing excessive pressure.
To resolve the issue, it may be necessary to replace these components or consider replacing the head unit entirely.