Although swimming pools come in all shapes and sizes, nearly all pools function the same way to keep the water clean and chemically balanced. See how much you know about how swimming pools work by taking this quiz.
Why are swimming pools filled with water all year-round?
to equalize the pressure against the ground
to allow for swimming at any time
to save water required to refill it
Which pools are the cheapest to install?
a fiberglass pool
a gunite pool
an above-ground pool
How often does the liner of a vinyl-lined pool need to be replaced?
every 5 years
every 10 years
every 20 years
Where are the main pool drains located?
in the pool walls
in the highest point of the pool floor
in the lowest point of the pool floor
What are pool skimmers?
drains at the top of the pool
special cloths that absorb oil from the top of the water
a vacuum system for the large debris at the bottom of the pool
Pool filtering systems involve a lot of suction through inlet valves in the skimmers. How is the suction maintained at safe levels?
by having one drain open at a time
by having multiple drains
with the help of a control dial
Which part of the pool might be described as the heart of the pool?
Water flows through a metal strainer __ it flows through the pump.
What material are pool filters often made from?
How can you know if your sand filter is overloaded with dirt?
You need to open them and check how much dirt is inside.
There are pressure gauges that indicate the level of blockage inside.
The pool filters get blocked and should be cleaned every month.
What do you need to do if your filter needs cleaning?
Replace the entire filter unit.
Replace the sand in the filter.
Backwash the filter.
What is a diatomaceous earth filter system made from?
fossilized remains of sea organisms
very fine dirt found at high altitudes
a sand-like substance made of finely ground sea shells
What governs how often water must pass through a filter system?
the pool owner
the pump system
Why does pool water need to be topped up every so often with fresh water?
Water is lost by evaporation.
Water is lost by backwashing.
Both of the above.
What may happen if the chemical balance of a pool is not maintained correctly?
The water will be difficult to heat.
Bacteria will grow in the pool.
The water may become salty.
What is the chemical generally used as a pool disinfectant?