Potable Water Distribution Flashcards
What is the most commonly used type of water meter
Positive displacement
How far must a water metre be from any entrance, wall or grade wall
1 foot
What is the minimum size of a water metre
5/8”
What type of metre would be used to monitor large floor volumes
A turbine metre
What causes condensation on waterlines
Humidity
What is needed to be done after installing But before operating a new part of a portable water distribution system
Clean it
What to methods can be used to maintain temperature in a hot water line that is longer than 30 m
A) Install a re-Circ line
B)Install heat tape
How must the water supply to lab sinks be protected from backflow
By the use of an approved backflow preventer
For a 5/8 water meter, how much space is required between adapters?
12 inches
Do water meters have to be electrically grounded
Yes
