Turning off water
Open faucets and drain the pipes above the work area. If you close the faucets too soon, the draining will slow down but not stop until it is done.
This part is unpredictable. As water filling the pipes upstairs falls into a bucket where you are draining, the overhead pipes may fill with air fast enough that siphoning action from the water heater stops and the water flow into your working area also stops reasonably quickly without emptying the tank.
For work on the cold water lines, turn off the cold inlet valve to the water heater (must be there and must work otherwise the preceding paragraph applies).
Turn off the gas or electricity to the water heater before beginning work. Have water gushing from a hot water faucet to prove that the tank is refilled before turning the water heater back on.
The disadvantages of crab apple trees. In summer, the apples are too sour to pick and eat. In winter the birds come and leave dropping all over the place.
Last edited by AllanJ; 04-02-2009 at 08:33 AM.