Identifying new models for human eye diseases By Sara Cassidy, M.S., Ph.D. Although it is difficult to measure the impact of chronic conditions like eye disorders, Prevent Blindness America estimates that eye disorders and vision loss cost $139 billion in 2013, placing these conditions among the most expensive health disorders in the US.
Curing deadly engine vacuum leaks. Vacuum leaks can be located with spray carburetor cleaner or a can of WD-40. If the area is obstructed by linkage or hoses, use an extension nozzle to pinpoint the area of the vacuum leak.
Whether you have leaking at the bolts, the flush valve, fill valve, or the tank to bowl gasket, the process for stopping the leak is pretty much the same. 1  If the leak is at the bolts: 2  Make certain that there are no metal washers in the tank. Stop now! and investigate. 2  If it only leaks when you flush the tank, the problem is at the sponge/rubber gasket. 3  Leaking may be caused by a tank that is not tightened enough. 4  The tank should rest on the ridge of the bowl for stability -- sealing the tank to the bowl with the sponge/rubber gasket.