Find a sink where you have separate hot and cold taps (a mixer tap won't work for this specific manual method). Push one end of the hose onto the nozzle of the hot tap and the other end onto the cold tap. Secure them tightly with clips or tape—the pressure will be high, and you don’t want the hose to fly off. Step 2: Turn on the Hot Tap Open the hot water tap fully. Step 3: Turn on the Cold Tap
If you ever have to drain your system, refill it slowly to allow air to escape naturally through the vents. air lock hot water
Air lock is a common hydraulic condition occurring in liquid piping systems, characterized by the entrapment of non-condensable gases (primarily air) at high points within the network. In hot water systems—ranging from residential combi-boilers to large-scale industrial heat exchangers—air lock disrupts thermosiphonic flow or pumped circulation, leading to partial or complete cessation of flow, localized overheating, and system inefficiency. This paper examines the physical mechanisms of air lock formation, its specific consequences in hot water circuits (including cavitation and boiler kettling), standard diagnostic techniques, and both passive (air vents, pipe sloping) and active (purging, pressure boosting) mitigation strategies. Find a sink where you have separate hot