: I have a problem with my sprinkler system. At the front of my house are two sprinkler pipes that come out of the ground and are connected by some type of valve. This valve is leaking and I need to ...

An experimental procedure using one-way valves to achieve lung volume reduction shows promise for an emphysema patient. Emphysema, a lung disease usually caused by smoking, damages air sacs in the ...

Look out for one-way valves located in your bilge-pump overboard discharge hose. The intended purpose is to prevent the water left in the bilge hose from flowing back into the boat after the pump ...