Results when air bubbles form in the plumbing, usually during draining and refilling. Ask your dealer for the best remedy based on your brand.

An air lock is a bubble of air which restricts the flow of water in a pipe.

An air lock is gas trapped in a high point of a liquid-filled pipe system. The gas, being lighter than the liquid, rises to the highest point and restricts the flow of liquid. In very tall systems, the gas can prevent flow entirely.

In biosafety facilities airlocks are usually two sets of doors in a corridor which when closed form a series of air locks to prevent air moving in or out of the area. Only one door should be opened at one time.

A device that stops air movement (flow) often just two doors separating the exterior from the interior from being in direct contact.

A small room with interlocked doors, constructed to maintain air pressure control between adjoining rooms (generally with different air cleanliness standards). The intent of an aseptic processing airlock is to preclude ingress of particulate matter and microorganism contamination from a lesser controlled area.

device that permits passage between regions of differing air pressures, most often used for passage between atmospheric pressure and chambers in which the air is compressed. A typical modern air lock consists of a cylinder of steel plate with airtight doors located at both ends, one opening from the outside into the lock, the other from the lock into the compressed-air chamber, together with valves to admit or to exhaust compressed air. One of the doors must always be closed; before the other is opened, the pressure within the air lock must be equalized with that on the opposite side.( 099)

A situation that can develop in a centrifugal pump that has not been properly primed. The rapid revolution of the impeller may create an air lock, which prevents priming of the pump.

The pressure of air that holds water inside an overturned canoe if you attempt to lift it straight up.

Enclosed space with two or more doors. i.e. requirement for an airlock between toilet and cooking areas. Generally formed by hallway.

A compartment separating areas a different environment, especially different air pressures, that is used for entry to and departure from a spacecraft.