“But what if you don’t have a hose, Grandpa?” Leo asked.
His grandson, Leo, who was visiting for the summer, poked his head under the sink. “It’s an airlock, Grandpa,” he announced. “A big bubble of air is stuck in the hot water pipe. It’s like a cork in a bottle. The water from the tank can’t push past it.” how to unblock an airlock in water system
High-pressure cold water surged through the hose, into the hot water pipe, and slammed into the trapped air bubble. The air bubble, which had been sitting there smugly, had no choice but to compress and then shoot backwards up the pipe, out through the open bathroom tap with a loud . “But what if you don’t have a hose, Grandpa
Higgins did. The water had nowhere to go because the rag was blocking the spout. It couldn’t flow out, so it did the only thing it could: it flowed backwards down the hot water pipe, pushing the airlock all the way back to the tank. “A big bubble of air is stuck in the hot water pipe