A
What is the lift-check valve that is placed on the end of a drop pipe?
foo valve
When is it considered a deep well?
more than 25' depth
the 3 main components on a centrifugal pump?
diffuser, impeller and wear bowl
To find Total Discharge Head, what 3 variables do we need?
elevation, friction loss and max psi at outlet.
Total force equals ______ x______.
Area in square inches x Psi
How much water is needed per person on a daily basis in liters?
230
What is the most common type of well used today?
drilled well
What is the pressure output of a submersible pump impeller stage?
9 psi
P1V1=P2V2=P3V3. How do you solve V2?
P1V1 divided by P2
1 cubic foot equals how many cubic inches?
1728
GPH means
Gallons per hour
A precharged tank come with what Psi?
2 psi less than cut-in
True or False. Well caps are not well seals.
true
how many cubic inches in 1 US gallon?
231
When using Drawdown, who's law do we follow?
Boyle's Law
How deep is a shallow well?
25' or less
AVC stands for
Air Volume Control
Pressure difference between cut-in and cut-out?
20 psi
how much does 1 US gallon weigh?
8.33 Lbs
Formula for volume of a cylinder.
Pi x R2 x h
Doubling the pipe diameter _______ the capacity.
quadruples
_____ + _______ = Total Dynamic Head
Suction Head and Discharge Head
At sea level atmospheric pressure is equal to how many feet?
around 34'
How do I find my cutout?
Discharge head into Psi
Sand point is often referred to which well?
Driven wells