1. Open up the purifier and place the blind disc at the bottom of disc stack.
2. The water outlet is blocked by seal on the gravity disc.
3. Blank off sealing water inlet line .
Wire drawing effect : It is erosion or scoring of valve seat and disc material of the valve . Causes : 1. Due to differential pressure across the valve . 2. Thermal and mechanical damages . Effects : Valve is unable to isolate the line and fails in sealing . Gas and liquid will leak from the wire and scratch like groove .
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