Generally, they can occur from one of the following causes: 1  Infection. 2  Environmental exposure. 3  Malignancy. 4  Occupational exposure. 5  Collagen vascular disease (an inflammatory condition of the body including the lung) 6  Drugs. 7  Idiopathic (unknown causes)
01-08-2006, 09:34 AM. Check to see if you have the tap marker (handle) turned down to far. The jam nut (lever collar) for holding the marker straight should not be touching the lever bonnet. The bonnet is the nut that holds everything to the faucet. If it is touching, this will cause your sticking Faucet.
For most of you, this problem can be resolved simply by making a quick trip to the hardware store to buy a replacement part. Loss of Water Pressure. If the water pressure suddenly drops when you use your faucet, the most likely reason is you have a build-up of mineral deposits inside. Most modern faucets can be taken apart so you can clean areas where lime-scale sticks.