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.
Interference with mechanical operation of the pump is another common cause of sump pump failure. Sump pits with gravel bottoms are susceptible to this. Figure 4 shows a rock jammed in a sump pump impeller, causing sump pump failure and a water loss. Interference of the float switch also can cause sump pump failure.igure 3 is a view of a sump pump plug that was connected to an extension cord. Rust patterns on the plug suggest that the connection was occasionally under water which caused the circuit breaker to trip and sump pump failure, an improper installation. It is not recommended to attach extension cords to sump pumps.