We live on 14 floor. The property was suppressed due to water leakage. How much stress is normal?

Pressure test the leaking pipeline until the pressure reaches 1.5~2 times of the normal working pressure. Normal indoor pressure is generally about 2 kg, and 4 kg is enough. Whether there is water leakage depends on whether the pressure can be maintained (the pressure gauge does not step down). If there is water leakage, you can see 2 kg. 0. 1MPa= 1kgf (kg) Don't be misled.