Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
42 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
5 major components of a private water system? |
Pump Pressure tank Pressure switch Pressure relief valve Foot valve |
|
|
|
What is the primary component? |
The pump. Would be no water without a pump🤥 |
|
|
|
What are the 6 different pumps? |
Horizontal piston Vertical piston Shallow well jet Deep well jet (2 pipe) Submersible |
|
|
|
When choosing a pump, what factors must you consider? |
Depth/diameter of well Properties of water Recovery rate Volume of water required |
|
|
|
What controls pressure of water at a faucet? |
Pressure switch (system) |
|
|
|
What are the three types of pressure tanks? |
Standard tanks Diaphragm tanks Bladder tanks |
|
|
|
Standard tank? |
No separation between water and air |
|
|
|
What is the issue with standard tanks? |
Over time they can become water logged. Water will end up absorbing the air in tank. |
|
|
|
How can air/water ratio be controlled on a standard tank? |
By means of installing an air volume control at required water level (2/3) |
|
|
|
3 types of air volume controls? |
Diaphragm Shallow well float Deep well float |
|
|
|
What would you use if you had a shallow well? |
Diaphragm or shallow well float - both allow for air to enter tank |
|
|
|
How does the deep well float work? |
Allows air in and expels air from tank. |
|
|
|
What should be done if gases are suspected to be in a pressure tank using a deep well float? |
It must vent outdoors as h2s may be present |
|
|
|
Differential for pressure switch must be set at? |
20 psi |
|
|
|
How would you increase pressure on system? |
Screw range nut in clockwise (larger nut) |
|
|
|
When trouble shooting a private water supply system, what are the 2 things to check first? |
#1 power supply #2 pressure switch |
|
|
|
How would you check a pressure switch? |
Inspect contacts and see if there is continuity. Contacts may need to be cleaned. Check tube for blockages |
|
|
|
What controls longevity and efficiency of system? |
Pressure tanks |
|
|
|
How do pumps stay cool? |
Flow of water |
|
|
|
Min time a pump should run for ? |
Min 2 minutes No more than 25 times per hour |
|
|
|
Water is compressible, true or false? |
False |
|
|
|
What is usable water? |
Amount of water drawn before it kicks on pump (cut in) |
|
|
|
What is a diaphragm tank? |
Uses a permanent flexible separator to isolate water from air |
|
|
|
What do hydro cells require when installed? |
Shut off valve Vent |
|
|
|
What is a mascontrol? |
Device that replaces pressure tank and pressure switch. Activates pump whenever there is a demand |
|
|
|
Main advantage of mascontrol? |
Steady pressure & volume |
|
|
|
All positive displacement pumps require? |
PRV- set at 10-20 psi above cut out |
|
|
|
What is the purpose of a foot valve? |
Lift check valve that prevents a pump from losing its prime |
|
|
|
Equipment and components must be protected from? |
Frost UV Dust |
|
|
|
If water quality changes what should you check? |
Well seal- grout |
|
|
|
If water volume decreased in well, what may have caused it? |
Rust, sand or iron bacteria blocking inlet |
|
|
|
If a prime on a jet/suction pump is lost, what is the causes? |
Faulty foot valve Leak on suction pipe O-ring on pitless adapter |
|
|
|
What is good practice when servicing a pitless adapter? |
Just throw some new o - rings on |
|
|
|
Can you use an air volume controller on a diaphragm tank? |
Heck no |
|
|
|
What must the upper portion of a diaphragm tank be charge to? |
3-5psi below set cut in pressure |
|
|
|
How much smaller can a diaphragm tank be than a standard? |
2 to 3.5 times smaller but just as efficient |
|
|
|
When checking pressure on diaphragm tank, what is important? |
Must not have water pressure. Tank must be empty |
|
|
|
What is a bladder tank? |
Bladder within tank holds water |
|
|
|
Benefit of bladder tank? |
Prevents corrosion- water does not come into contact with inside of tank |
|
|
|
What must bladder tanks be charged to? |
Also 3-5psi below cut in |
|
|
|
How should pressure tanks be sized? |
So pump won’t cycle more than 25 times per hour |
|
|
|
Expansion tank used for point of use? |
HYDROCELL |
Supplies approx. few cups of water |
