ICA Module 2 Section 7 Flashcards
Shut off valves include:
Gate & Ball Valves
Check valves allows water to flow in one ___ direction.
One
Union fittings allow contractors to remove & replace equipment without initializing new plumbing. T/F
True
Types of pool & spa valves:
Gate values, butterfly valves, globe valves, Ball valves, multi-part valves, check valves
PVC coming from pool or spa supported every ___ to ___ feet.
6 to 8 feet
The most common types of solar panels used in pool &b spa heating systems is:
Closed loop & Open loop
60-75% of the surface area of pool & spa = the surface area of the solar panels. T/F
True
Power supply must be within __ to __ feet, no longer from inside wall of pool or spa
10 to 20 feet
Required Volts around pool:
125 volts
Only certain receptacles can be between __ to __ feet from inside wall of pool.
5 to 10
No receptacle that supply power to appliances within 10 feet of inside wall of pool or spa/ T/F
True
Electrical systems include:
Dry niche, Luminaires, Forming shells, No niche illuminares
Solar panels are installed facing South. T/F
True
Receptacle clearance in any direction from pool water:
22.5 feet
Receptacles should not be within __ feet of indoor spas & hot tubs.
5
You can not use underground wiring within ____ feet of pool or spa.
5
Filtration types:
Diatemous, sand & gravel, cartridge
DE filters are best or worst?
Best
Cartridge filtration are used for pool, but mostly spas. T/F
True
Pressure gauges will read:
0-60 PSI
Term used for cleaning a pool filter:
“Back washing”
Most pool heaters are fueled by natural gas. Electric heaters are usually used for _______.
Spas
Gas heater igniter types:
Standing pilot, Intermittent pilot, Hot surface Ignition
A fineman switch is an On/Off switch. T/F
True
A thermocoupler is a device that senses?
Heat
Pool Temp 78-82 degrees & spa temp not to exceed 104 degrees. T/F
True
Barriers around pool & spas should be at least 48” above grade. T/F
True
Well casing & cap should extend at least __ inches above ground.
12 inches
Well caps are:
aluminum or plastic
Shallow wells have jet pumps & Deep private wells have submersible pumps. T/F
True
Minimum breaker size for well:
20 amp at 240 volt
Wells must have lockable disconnect in sight & _ feet from ground.
6
Iron types in wells:
Ferrous, Ferric (rust), Organic iron, Bacterial iron
Radon is colorless, tasteless, odorless, radioactive gas. T/F
True
Well casting materials:
carbon steel, galvanized steel, stainless steel, PVC
Septic Systems:
Aerobic with ___.
Anaerobic without ___.
Aerobic with oxygen
Anaerobic without oxygen
3 common elements of bacteria breaking down sewage:
Scum, Effluent, Sludge
Faucets Water Flow
Older Faucets flow: _ gallons per minute
Newer Faucets flow: _ gallons to _ gallons per minute.
Older Faucets flow: 3 gallons per minute
Newer Faucets flow: 2.5 gallons to 3 gallons per minute.
