We live in a bungalow.
Cold water stopped working in the bathroom, and like most people, we phoned a plumber.
"I'll be with you at 5.50 this evening." He was a busy person.
"How much do you charge for this air lock?
"€70 - I'll see you later today..."
This worked for me. Place a small hose (few inches long) to the bathroom tap opening and blow for one minute. You may hear water bubble in the Attic. I quickly put the hoover to the bathroom tap and the water came out straight away. We cancelled the plumber.
For most small jobs, you get your answer on the web.
Colm January 2010
January 2010