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Water’s natural beauty preptuated through Fountains.

A traditional fountain is an arrangement where water issues from a source, fills a basin of some kind, and is drained away. Fountains may be wall fountains or freestanding. In fountains, sheets of water may flow over varied surfaces of stone, concrete or metal. Basins may overflow from one into another, or the overflow may imitate a natural cascade. Many fountains are located in small, artificial, ornamental ponds, basins and formal garden pools, and often they include sculpture.

One of the most common features of a fountain, if there is enough pressure, is one or more jets, in which water is forced into the air under pressure to some height. A famous example of such a modern fountain rises from the surface of Lake Geneva.

Early fountains depended on the natural gravitational flow of water, from a spring or aqueduct supplied by a distant and higher source of water, which provided hydraulic head.

Hellenistic hydraulic engineers employed great originality in designing fountains, where the water pressure might be employed to animate automata and water organs.

 

 

Iraqi engineer and inventor al-Jazari first described reciprocating motion in 1206 when the kings of the Artuqid dynasty in Turkey commissioned him to manufacture a machine to raise water for their palaces. The finest result was a machine called the double-acting reciprocating piston pump, which translated rotary motion to reciprocating motion via the crankshaft-connecting rod mechanism.

Other early fountains were geometrically regularized springs, developed in the classic Persian garden. These gardens were typically enclosed and were designed to provide relaxation. The effect of sunlight was the main concern regarding the structural aspect of the Persian garden design. Shapes and textures were specifically chosen for their ability to direct sunlight. In the 16th century, elaborate fountain displays were garden features of Mannerist gardens of Central Italy and the Mughal gardens of India.

 

 

Early Modern English employed fountain to refer to a natural spring water or source, which the 16th century garden fountain might consciously imitate in a grotto.

Christian allegory made much use of the concept of the fountain, specifically the Fountain of Life, associated with the rebirth that was intended to be experienced at the Baptismal font. The Fountain of Life appears in Christian illuminated manuscripts of Late Antiquity, and elaborate Gothic fountains formed centerpieces for enclosed gardens. An offshoot of the Fountain of Life was the legend of the Fountain of Youth, which Juan Ponce de León sought in Florida. From the Fountain of Youth one can drink to gain immortality, or to regain one’s youth.

The practical Romans marked the delivery end of aqueducts with a public fountain, a practice that was revived in Rome in the 15th century, when the restored Aqua Felice once more delivered a symbolic presentation of its waters to Rome in the original Trevi Fountain, since replaced by the familiar Baroque fusion of water, architecture and sculpture.

Animated fountains often use laminar jets that provide water that moves like ping pong balls in animation, so that it breaks up, as the height varies, and the behavior of each jet operates independently with up to 5 Hz modulation frequency (1/5 second), so that the water packets collide with themselves. For example, such fountains can spit up one ball of water, which then explodes, showering people with a fine mist.

A musical fountain is a type of fountain that dances in time with recorded or live music, controlled either by a computer or by a live “organist” operating the fountain through a switchboard. Notable examples of this are fountains on Vasilievsky Island in St. Petersburg, Russia, and the fountains of the Bellagio in the Las Vegas Strip.

 

 

A splash fountain or bathing fountain is a fountain intended for people to cool off in. Although many fountains were not designed as bathing fountains, children of all ages often use them for that purpose. Some fountains are fenced in, or have raised edges as a barricade to keep people out. In other situations, fountains are designed to allow easy access, and feature nonslip surfaces, so that people can safely use them to cool off in on hot summer days.

Splash fountains have zero standing water, to eliminate possible drowning hazards, so that no lifeguards or supervision is required. These splash pads are often located in public pools, public parks, or public playgrounds (known as “spray grounds”).

 

 

A recent example of a public splash fountain, intended for water play, is the one located in Toronto’s Dundas Square. It consists of 600 ground nozzles arranged in groups of 30 (3 rows of 10 nozzles). Each group of 30 nozzles is located beneath a stainless steel grille. Twenty such grilles are arranged in 2 rows of 10, right in the middle of the main walkway through Dundas Square. Both the architects and the designers have confirmed that these were intended for water play, and the facility operators have confirmed that the water is treated to pool water quality standards, and that the health department tests the water quality, at least once a day. The entire surface of Dundas Square is made of special nonslip square granite slabs that match the size of the metal grilles. The special texture on the slabs ensures that they are not slippery when wet.

Spray fountains are designed to serve as a play area where children (and sometimes adults) can run around and cool off under a canopy of water. Spray fountains are becoming popular in areas where the construction of public pools is difficult or costly, such as urban areas. However, spray fountains can also be used to enhance a pool’s surrounding play area.

A water fountain or drinking fountain is designed to provide drinking water and has a basin arrangement with either continuously running water or a tap. Modern indoor drinking fountains may incorporate filters to remove impurities from the water and chillers to reduce its temperature. In some regional dialects, water fountains are referred to as bubblers. Water fountains are usually found in public places, like schools, rest areas and grocery stores. Many jurisdictions require water fountains to be wheelchair accessible (by sticking out horizontally from the wall), and to include an additional unit of a lower height for children and short adults. The design that this replaced often had one spout atop a refrigeration unit.

In modern fountains, the traditional gravitational pressure from an unseen reservoir at a higher level is not always practical. In many circumstances fountains obtain their water from a closed, recirculating system that must still be filled at the start from the local water supply system and also topped up through its life to offset the effects of evaporation. Allowance must also be made to handle overflow in the case of heavy rain.

The pressure that causes water to move through the fountain may be produced instead by a motor-driven (often-submersible electric) pump. “Static head” is useful to quantify this pressure.

 

 

A water filter, typically a media filter, removes particles from the water — this filter requires its own pump to force water through it and plumbing to remove the water from the pool to the filter and then back to the pool. The water may need chlorination or anti-algal treatment, or may use biological methods to filter and clean water.

The pumps, filter, electrical switch box and plumbing controls are often housed in a “plant room”. Low-voltage lighting, typically 12-volt direct current, is used to minimize electrical hazards. Lighting is often submerged and must be suitably designed. Floating fountains are also popular for ponds and lakes they consist of a float pump nozzle and water chamber.

Many civic fountains in public parks are commissioned in commemoration of either national or public figures.

 

 

There are also some limited fountain day celebrations. The University at Albany hosts an annual “Fountain Day,” a day on which the university community comes together to celebrate the arrival of spring and the near-end of the semester. Drawing large crowds, the fountain-centered event creates something akin to an urban beach.

A hydraulophone is a fountain that can be played as a musical instrument. These fountains are like woodwind instruments, but using water instead of air. The embouchure of the instrument occurs at the finger holes (referred to as “mouths”). Hydraulophones often have multiple “mouths”, so that a player can put each finger into a different mouth at the same time, in order to play chords, while independently manipulating each finger for separate and individual control of the embouchure of each note in a chord. A skilled hydraulist can slightly “bend” each note in order to play just intonation in any desired key, or to gently and fluidly vary intonation or temperament as a piece of music changes from one key to another.

There is a need for good water quality in contemporary fountains, regardless of their avowed intended use. Regardless of the fact that some fountains are designed and built not as bathing fountains, but are rather used simply as architectural decor, people will often drink from, bathe or wash their hands in any fountain. Additionally, fountain spray can contain legionella bacteria and has been linked to Legionnaires ‘disease outbreaks. Therefore, minimum water quality standards are necessary, regardless of intended use. Guidelines have been developed for control of legionella in ornamental fountains.

In theory, a freestanding water feature should not have a bather load, and consequently, many builders would not choose to install filters or sanitation devices. In reality, however, people will interact with ornamental water fountains in the most surprising ways. In Disneyland, for example, people have been reported to change their babies’ diapers and then wash their hands in the water fountain (thus adding unexpected bacteria and organics into the water).

In July 1997, an outbreak of cryptosporidiosis was connected to an ornamental fountain at the Minnesota Zoo, which did not have proper filtration and water treatment. Children played in fountains and swallowed water, and spurted the water out of their mouths to mimic the way nozzles in the fountain spurted the water. It was therefore necessary to put a fence around the fountain to keep people away.

 

 

In the United States fountain operators and owners are legally liable for failure to either fence-in fountains, or to properly filter, chlorinate or otherwise treat the water, if the fountains are not fenced in. If the water is unsafe, fences must be designed to keep people far enough away, so that they cannot touch the water, otherwise children get water on their hands, put their fingers into their mouths, and end up getting sick, thus subjecting owners and operators to legal liability.

If you are interested in adding a fountain to your home or office, Repairfinders.com is the perfect place for you. With many qualified professionals in your area, it will only take a couple of minutes to find the right person for you. Not only will a fountain bring you peace and entertainment it will also bring elegance to your home office.

 

 

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Construction Work

As most of you all already know, I enjoy informing you about many different aspects of the repair/skill/labor industry. I do this because I think it is only fair that everyone should know what is going on out there. Today I want to talk about construction. Many people do not know much about constructors, except that they build things. Well I can tell you they do more than just build things.

In general, there are three types of construction:

  1. Building construction
  2. Heavy/highway construction
  3. Industrial construction

Each type of construction project requires a unique team to plan, design, construct, and maintain the project.

Building construction

Building construction is the process of adding structure to real property. The vast majority of building construction projects are small renovations, such as an addition of a room, or renovation of a bathroom. Often, the owner of the property acts as laborer, paymaster, and design team for the entire project. However, all building construction projects include some elements in common - design, financial, and legal considerations. Many projects of varying sizes reach undesirable results, such as structural collapse, cost overruns, and/or litigation reason; those with experience in the field make detailed plans and maintain careful oversight during the project to ensure a positive outcome.

Building construction is procured privately or publicly utilizing various delivery methodologies, including hard bid, negotiated price, traditional, management contracting, construction management-at-risk, design & build and design-build bridging.

Procurement

Procurement describes the merging of activities undertaken by the client to obtain a building. There are many different methods of construction procurement; however, the three most common types of procurement are:

Traditional (Design-bid-build)

Design and Build

Management Contracting

Traditional

This the most common method of construction procurement and is well established and recognized. In this arrangement, the architect or engineer acts as the project coordinator. His or her role is to design the works, prepare the specifications and produce construction drawings, administer the contract, tender the works, and manage the works from inception to completion. There are direct contractual links between the architect’s client and the main contractor. Any subcontractor will have a direct contractual relationship with the main contractor.

Design and build

This approach has become more common in recent years and includes an entire completed package, including fixtures, fittings and equipment where necessary, to produce a completed fully functional building. In some cases, the Design and Build (D & B) package can also include finding the site, arranging funding and applying for all necessary statutory consents.

The owner produces a list of requirements for a project, giving an overall view of the project’s goals. Several D&B contractors present different ideas about how to accomplish these goals. The owner selects the ideas he likes best and hires the appropriate contractor. Often, it is not just one contractor, but a consortium of several contractors working together. Once a contractor (or consortium/consortia) has been hired, they begin building the first phase of the project. As they build phase 1, they design phase 2. This is in contrast to a design-bid-build contract, where the project is completely designed by the owner, then bid on, then completed.

Kent Hansen, director of engineering for the National Asphalt Pavement Association (NAPA), pointed out that state departments of transportation (DOTs) usually use design build contracts as a way of getting projects done when states do not have the resources. In DOTs, design build contracts are usually used for very large projects.

Management procurement systems

In this arrangement, the client plays an active role in the procurement system by entering into separate contracts with the designer (architect or engineer), the construction manager, and individual trade contractors. The client takes on the contractual role, while the construction or project manager provides the active role of managing the separate trade contracts, and ensuring that they all work smoothly and effectively together.

Management procurement systems are often used to speed up the procurement processes, allow the client greater flexibility in design variation throughout the contract, the ability to appoint individual work contractors, separate contractual responsibility on each individual throughout the contract, and to provide greater client control.

Residential construction

Residential construction practices, technologies, and resources must conform to local building authority regulations and codes of practice. Materials readily available in the area generally dictate the construction materials used (e.g. brick versus stone, versus timber). Cost of construction on a per square meter (or per square foot) basis for houses can vary dramatically based on site conditions, local regulations, economies of scale (custom designed homes are always more expensive to build) and the availability of skilled trades people. As residential (as well as all other types of construction) can generate a lot of waste, careful planning again is needed here.

Heavy/civil construction

Heavy/Civil construction is the process-adding infrastructure to our built environment. Owners of these projects are usually government agencies, either at the national or local level. As in building construction, heavy/civil construction has design, financial, and legal considerations, however these projects are not usually undertaken for-profit, but to service the public interest. However, heavy/civil construction projects are also undertaken by large private corporations, including, among others, golf courses, harbors, power companies, railroads, and mines, who undertake the construction of access roads, dams, railroads, general site grading, and massive earthwork projects. As in building construction, the owner will assemble a team to create an overall plan to ensure that the goals of the project are met.

As you can see, construction work is a very difficult job (but of course, we knew that already). The key point that I am trying to make is that, when someone is working for you, you want for him or her to do the best. Where can you find the best to get the job done? Mmmhmmm, I knew you knew. Repairfinders.com. It is the only place where you can find the very best in the business, in your neighborhood. It gets better, not only will you get an honest, reliable, hardworking individual, but all the businesses in offer free price quotes. Jack is signing off.

 

 

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