HOW SWIMMING POOLS WORK
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How do swimming pools work?
There is nothing more refreshing on a steamy summer day
than to jump into a pool filled with cool, clear water. While these may seem
like nothing more than large, artificially-made puddles, there is quite a bit
involved in making swimming pools work. Not only are there certain chemicals
that are necessary to maintain the water in the pool. The way the system of a
swimming pool operates can also be quite complex and are essential in
maintaining a clean and crisp swimming pool.
If you’re looking to build or buy a swimming pool,
they come in almost any shape that you could want but whatever the shape, every
swimming pool works in the same basic way. They all use a combination of
filtration devices as well as a mix of chemicals so that the water can always be
cleaned. The standard swimming pool has seven main parts. These are a basin, a
pump run by a motor, a filter for the water, a device to release chemicals into
the water, multiple drains and returns, and plumbing constructed of PVC plastic
to connect all of the parts together.
The main concept of swimming pools is to
continually pump water throughout the system. The water is taken from the pool
and pumped through the filters and the chemicals and then distributed back into
the pool again. This process frees the water of dirt and other debris within the
pool itself as well as the water. This process also takes bacteria out of the
water. For those who like the perfect temperature in their pool, some pool
systems also include a heating element.
Although pools may come in any shape, there are
different basic types of pools and the type of pool it is mainly depends on how
the basin is made. Above-ground pools are definitely the cheapest type of pool
one could own and they are the easiest to build, usually coming in many
different large pieces that can be pieced together. Although it may seem that
you can build them yourself, it’s usually wiser to call in professionals. The
contractors will first create a large, flat piece of land by levelling off the
section of ground. They will then create a track that will hold the exterior of
the pool. Sand is then spread inside the pool area and plumbing is installed.
They will then place the vinyl layer around the pool area and they will smooth
and put the vinyl in place once the pool has been filled with water. The last
step is to install the pump and filters after which, the pool is ready to be
used. Although these types of pools are portable, they don’t last as long as
other types of pools and they aren’t as attractive.
Fiberglass pools are very popular and are simply a
molded basin constructed from fiberglass plastic. A hole will first be dug to an
appropriate size. The plumbing is then laid, some sand is added to fill spaces
and the pool is then placed within the hole. They will then even out the pool,
install the plumbing and refill the area around the pool. This type of pool
generally has a concrete deck built around it. In-ground, vinyl lined pools are
a combination of in-ground and above-ground pools. They are set up and operate
the same way as an above-ground pool but they look like an in-ground pool.
However, because they are not truly built in-ground, they are not as durable as
Gunite pools are the most common type of pool
construction. After the hole is dug for these types of pools, the plumbing in
installed and sand is used as filler. However, a grid framework is constructed
using steel rebar rods. The rods are spaced approximately ten inches apart and
they are held together with a wire. Once the grid is in place, a layer of gunite
is applied with a spray. Gunite is a combination of cement and sand and this is
placed around the rebar rods. Inside the sprayer, this mix is dry but just
before it is sprayed it is mixed with water to give it a wet concrete feel. The
extra gunite will then be troweled to make it smooth and it then needs to dry
for approximately one week. Once it has dried, a smooth lining will be applied
over the rough surface.
Poured-concrete pools were replaced by gunite pools because they operate in much
the same fashion. The difference is that instead of the gunite spray being
applied around rebar rods, they would be poured into wooden frames.
Although there are many options pertaining to what
kind of swimming pool you have, they all work in the same general way in that
water is taken from the pool and put through a filtering and cleansing system
that keeps the water clean and clear.
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