Why Is Your RO Purifier Leaking? (And How to Stop It Immediately)
Step 1: Shut Off the Inlet Valve and Unplug Power
Immediately close the steel diverter tap connecting your kitchen water line to the 1/4-inch white RO inlet tube. Turn off the 230V electrical switch and unplug the SMPS adapter to prevent short-circuits with internal electrical solenoids.
Common Cause 1: Loose or Worn Quick-Connect (Push-Fit) Collet
Most modern purifiers use John Guest style push-fit fittings. If a tube was bent during cleaning or the internal rubber O-ring dried out, high pump pressure (80 PSI) forces water droplets past the collar. Re-cutting the tube square with a sharp blade and pressing it firmly into the collar often resolves this.
Common Cause 2: Cracked Filter Housing from High Apartment Pressure
In Bangalore high-rise apartments (10+ floors), gravity pressure from overhead tanks or hydro-pneumatic pumping systems can surge past 6 bar (90 PSI). Without an inlet Pressure Reducing Valve (PRV), the plastic pre-filter bowl or inline sediment housing can crack along the seam.
Common Cause 3: Solenoid Valve (SV) Failure or Float Valve Jam
If water constantly drips from the overflow or cabinet bottom when the system is off, the electromagnetic Solenoid Valve has jammed open with limescale, permitting continuous municipal flow into the storage tank.
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