Hydraulics

The study of liquids at rest and in motion

• Hydraulics

• Kinematics

• Physics

• Pump Mechanics

It is referred to as flow rate. It is used to specify how fast water moves, e.g., through pumps, showerheads, and pipes.

• GPM

• RPM

• TDH

• GPH

This is used to indicate the speed of the pump by saying how many times per minute it will go around in a circle.

• GPM

• RPM

• TDH

• GPH

The speed at which the water is flowing.

• GPM

• RPM

• TDH

• FPS

The amount of time required to circulate the entire volume of water

through the system.

• flow rate

• speed

• velocity

• turnover rate

Industry studies have determined that for safety, the suction piping should be sized for a speed of ____?

• 8 fps or less

• more than 8 fps

• 10 fps

• less than 10 fps

All of the following are essential in selecting the appropriate pump for a pool EXCEPT

• Calculate Pool Volume in Gallons

• Establish Turnover Rate - Convert to GPM

• Determine Flow through Existing Pipe Size

• Calculate System Resistance - TDH

• Brand must be Pentair

Why is it important to know your pool's volume?

• So you will know how long you will need to run your pump and filter, and of course what dosage rates to apply your chemicals. Running your pump and filter for longer than necessary will waste electricity.

• So you will know how deep the pool is.

• So you can determine the total volume of water in the pool in case you will drain and replace the pool water.

• So you will know and understand your pool.

Which is not a TRUE statement?

• One turnover only filters 67% of the water.

• After a second turnover, 86% of the water has been filtered.

• It takes four turnovers to filter 95% of the pool water.

• One turnover filters 99.99% of the water.

We want our pump to do one complete turnover of our 25,000-gallon pool in 6 hours. What is the required GPM?

• 69

• 70

• 71

• 72