1.   For extended periods of a week or more, you must drain down the household plumbing system.

2.   For he is responsible for maintaining the sophisticated plumbing system inside the famous landmark.

3.   Thus it can flow upwards, as well as downwards or sideways, just like water in the plumbing system of a house.

4.   However, the maturity of the plumbing system and reservoir size may also play a role.

5.   An under-reconstruction plumbing system failed, giving the choice of scalding-hot or freezing-cold water, but never anything one could shower in.

6.   And in winter, you need to be able to drain the plumbing system when temperatures drop below freezing.

7.   As long as the plumbing system is working perfectly, there is no need to concern yourself with these valves.

8.   Between reconstructing stone walls and plumbing systems, there is much talk of eating, drinking wine and the glories of small-town Tuscan life.

9.   A. A mixture of copper and iron pipes in a plumbing system is fairly common in older homes.

10.   But for most other people, the operating system is about as significant in their daily lives as the plumbing system.