When a purifier leaks after reassembly, what is usually the cause?

When a purifier leaks after reassembly, one common cause is hardened O-rings. O-rings are essential components in sealing joints and preventing leaks in various machinery, including purifiers. Over time, exposure to high temperatures, chemicals, or aging can cause the material of O-rings to harden, lose elasticity, and become less effective in creating a seal. If an O-ring is hardened, it may not appropriately compress against the surfaces it is meant to seal, leading to leaks when the purifier is put back into operation.

While loose fittings, incorrect assembly, and defective parts could potentially lead to leaks, the condition of the O-rings is a more specific issue that directly affects the seal's integrity. If O-rings are not replaced during maintenance or their condition is not properly evaluated, it can result in persistent leaking, even if all other elements of the purifier are in good order. Therefore, recognizing the importance of O-ring condition and replacement is crucial for preventing leaks after reassembly.