“Well, how do we get the cork out?” grumbled Higgins.
A moment later, Leo pulled out the rag. They turned on the tap, and whoosh — perfect pressure. how to unblock an airlock in water system
“Now,” he said, “turn on the HOT tap first. Then, slowly, turn on the COLD tap.” “Well, how do we get the cork out
Whoosh.
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. and whoosh — perfect pressure. “Now