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![]() At Aquatique Pools, we believe that your pool should be a reflection of you and your family’s own unique lifestyle. Our award-winning designers work together with landscape architects, combining form and function to ensure that your pool is just as exciting tomorrow as it is today. When you buy an Aquatique Pool, you’re buying the highest quality materials and construction methods available. No detail is ever too small when we’re building your dream pool!
ARTICLES How to Determine Which Pool Algaecide and Pool Clarifier Is Best for Your Swimming Pool Most pool supply distributors offer an astounding selection of algaecides and clarifiers for your swimming pool, and if you do not understand how they work, or what their uses are, it can be difficult to make the right choice. The following information will help you cut through the marketing hype, and decide for yourself which product is best for your aquatique swimming pool. 1. Add preventative algaecide to your swimming pool on a weekly basis if you regularly experience problems with algae growth. If you have never had an algae problem in your swimming pool, there is no need for the algaecide. The “quat” or “polyquat” algaecides are quaternary ammonium compounds (instead of a copper formula), which treat and prevent algae growth in a different way. These algaecides are safer to use than a copper based algaecide because they will not stain an aquatique swimming pool. If you have experienced any pool stains caused by metals in the past, you should use a quat or polyquat algaecide to treat your swimming pool. Although quats cannot cause staining, these algaecides may cause foaming if not used properly. Polyquat pool algaecides cannot cause staining or foaming, and are typically more expensive than the other forms of algaecides. 4. Use a pool clarifier chemical when water becomes dull or cloudy and is not cleared by 12-24 hours of filtration. If all chemical levels are properly balanced, cloudy pool water is caused by fine debris suspended in the swimming pool water. Dust or debris particles are sometimes too small for the pool filter to remove from the pool water, and may pass directly through the pool filter. A sand filter provides the least efficient filtering of pool water, and this problem is more likely to occur when using a sand pool filter. A pool clarifier chemical will group together very fine particles of debris into larger bunches, which can be more easily trapped by the pool filter. Most pool clarifier chemicals cannot be used in a swimming pool with a D.E. (diatomaceous earth) filter. Tips Pool Filters The filters in this system are high-rate sand filters. Sand filters consist of a large tank, made of fiberglass, concrete or metal, containing a thick bed of special-grade sand, which has a squarish shape. Over time, the collected dirt and debris in the sand slows down the water flow. Pressure gauges at the filter inlet and outlet give the pool custodian an idea of the blockage level inside. If gauges show much greater pressure on the inlet pipe than the outlet pipe, the custodian knows there’s a lot of collected debris in the sand. This means it’s time to backwash the filter. To backwash, the custodian adjusts a number of valves to redirect the water flow. He or she closes the return pipe leading to the pool and opens the drainage pipe, which lead to the sewer system. He or she adjusts a valve at the filter to connect the pipe from the pump to the outlet pipe and connect the drainage pipe to the inlet pipe. With this arrangement, water from the pump pushes up through the sand, dislodging the dirt and debris. At the top of the filter tank, the dirty water flows out through the inlet pipe and into the sewer. In place of a sand filter, some aquatique pool systems use a diatomaceous earth filter or a cartridge filter. In a diatomaceous earth filter, water from the pool passes through filter grids coated with diatomaceous earth, a fine powder made from the chemically inert, fossilized remains of sea organisms called diatoms. In a cartridge filter, dirty water passes through a filter made out of polyester cloth or corrugated paper. Instead of backwashing, you simply remove the filter and hose it off. After a few years (or as many as eight years), it’s time to discard the old filter and put in a new one. In most regions, the law dictates that all the water in the pool (or more accurately, the equivalent volume) must pass through the filter in a certain amount of time — typically between 30 minutes and six hours. For the apartment-complex pool pictured above, that means pumping 167,000 gallons (630,000 liters) of water through the filtering system every six hours! The pump and filter system is also connected to a well or municipal water line so fresh water can be added to the pool. This is necessary to replace water lost to evaporation, backwashing and “splash-out” (water that splashes on the deck or is carried out on people’s bodies and swim suits). When it’s pretty hot out and there’s heavy swimmer activity, this 167,000-gallon pool could lose 300 gallons (1,100 liters) or more in one day.
To take care of pathogens in the water, you have to introduce a disinfecting agent that will get rid of them. The most popular pool disinfectant is the element chlorine, in the form of a chemical compoundsuch as calcium hypochlorite (a solid) or sodium hypochlorite (a liquid). When the compound is added to the water, the chlorine reacts with the water to form various chemicals, most notablyhypochlorous acid. Hypochlorous acid kills bacteria and other pathogens by attacking the lipids in thecell walls and destroying the enzymes and structures inside the cell through an oxidation reaction. Alternative sanitizers, such as bromide, do basically the same thing with slightly different results. Chlorine is typically prepared in liquid, powder or tablet form (though some professionals use gaseous chlorine), and it can be added to the water anywhere in the cycle. Pool experts generally recommend adding it just after the filtering process, using a chemical feeder. If it’s added directly into the pool, using tablets in the skimmer boxes, for example, the chlorine tends to be too concentrated in those areas. One problem with hypochlorous acid is that it’s not particularly stable. It can degrade when exposed to ultraviolet light from the sun, and it may combine with other chemicals to form new compounds. Pool chlorinators often include a stabilizing agent, such as cyanuric acid, that reacts with the chlorine to form a more stable compound that does not degrade as easily when exposed to ultraviolet light. Even with a stabilizing agent, hypochlorous acid may combine with other chemicals, forming compounds that are not very effective sanitizers. For example, hypochlorous acid may combine with ammonia, found in urine, among other things, to produce various chloramines. Not only are chloramines poor sanitizers, but they can actually irritate the skin and eyes and have an unpleasant odor. The distinctive smell and eye irritation associated with swimming pools are actually due to chloramines, not ordinary hypochlorous acid — a strong smell usually means there is too little free chlorine (hypochlorous acid), rather than too much. To get rid of chloramines, pool custodians have to shock treat the pool — add an unusually strong dose of chemicals to clear out organic matter and unhelpful chemical compounds. Chloramine formation is related to the second major element in pool chemistry, maintaining the right pH in the pool. pH Level The water’s pH is a measure of its total acid-alkalinity balance — the relative proportion of acids andalkalis in the water (check out Chem4Kids: Acids & Bases for a description of acids and alkalis). Simply put, water that is either too acidic or too alkaline will cause undesirable chemical reactions. If the water is too acidic, it will corrode metal equipment, cause etching on the surface materials and cause skin irritation. If the water is too alkaline, it can cause scaling on the pool surface and plumbing equipment and can cloud the water. Additionally, both high acidity and high alkalinity alters the effectiveness of the chlorine. The chlorine won’t destroy pathogens as well if the water is too alkaline, and it will dissipate much more quickly if the water is too acidic. On the pH scale, zero indicates extreme acidity, 14 indicates extreme alkalinity and 7 indicates a neutral state. Most pool experts recommend a pool pH between 7.2 and 7.8. To raise or lower pH, a pool custodian simply adds acids or alkalis into the water. For example, adding sodium carbonate (soda ash) or sodium bicarbonate (baking soda) will generally raise the pH, and adding muriatic acid or sodium bisulfate will lower the pH. Maintaining the proper balance of chemicals in the pool is a continual process, because any new element — oils from a swimmer’s body, a shot of chlorine, stuff that falls in the water — shifts the water’s total chemical makeup. In addition to pH, pool custodians also monitor total alkalinity, calcium hardnessand total dissolved solids. When you consider all the chemistry and machinery involved in swimming pools, it’s clear that they really are remarkable pieces of technology. It takes a surprising amount of work and ingenuity to build and maintain these summertime staples. For more information on swimming pools and related topics, check out the links on the next page. Pool Drain Systems We’ve already seen that the water in a swimming pool needs to circulate through a filtering system, to remove dirt and debris. During normal operation, water flows to the filtering system through two or more main drains at the bottom of the pool and multiple skimmer drains around the top of the pool. The skimmers draw water the same way as the main drains, but they suck only from the very top of the pool (the top eighth of an inch, typically). Any debris that floats — leaves, suntan oil, hair — leaves the pool through these drains. The diagram below shows a common system. In the system described here, the floating weir, the door at the inlet passageway, swings in and out to let a very small volume of water in at a time. To catch debris effectively, the goal is to skim just the surface level. The water flows through the strainer basket, which catches any larger debris, such as twigs and leaves. In addition to the main inlet, the skimmer system has a secondary equalizer line leading to a drain below the surface level. This line keeps the skimmer from drawing air into the pump system if the water level drops below the level of the main inlet. The water is pumped through the filtering system and back out to returns, inlet valves around the side of the pool. This system involves a lot of suction, but if the pool is built and operated correctly, there is virtually no risk of suction holding somebody against one of the drains. The only way the plumbing systemcould apply this sort of suction is if there were only one open drain. In a safe pool, there are always multiple main drains as well as several skimmer drains, so if somebody or something blocks one drain, the pumping system will pull water from one of the other drains. This eliminates the suction on the blocked drain. Most aquatique swimming pools also have a couple of vacuum ports, which are only used in pool cleaning. These ports attach to pool vacuum cleaners, which work something like ordinary vacuum cleaners except that they suck water instead of air. The vacuum ports may have their own pumping system, but in most pools they are driven by the main pump. After making its way into the various drains, the water flows on to the filtering stage. In the next section, we’ll find out what the pumping and filtering systems are all about To most of us, a pool is, more or less, a big hole in the ground. We don’t see most of the expensive machinery in a pool system, because it’s usually tucked away in nearby pump room. But this is the stuff that really makes the pool work. The heart of the pool system is the water pump. In a typical pump system, an electric motor spins an impeller inside the pump housing. The impeller drives the water from the various drains through the filter and back out to the water inlets. Just before it flows into the pump, the water passes through a metal strainer basket that catches leaves and other large debris that might clog up the pump. Next, the water flows into the filter (or, in this setup, one of two filters). In the next section, you’ll find out what happens at this point in the system. How Pools Work Conceptually, swimming pools are pretty simple — they’re just big basins of water. But on a hot summer day, a swimming pool can seem like the greatest invention known to man. And as it turns out, there really is a lot of cool technology at work in your average pool — much more than you might expect.
A typical pool system In the next section, we’ll look at the different types of pools.
While these pool designs are quite different, they all rely on the same basic plumbing and filtering systems.In the next few sections, we’ll see how these components actually keep the pool going. Aquatique Pools Swimming Site Launch!! Welcome To Our Website How Come Aquatique What Else?
Considerations When Building a Pool 10 POINTS TO CONSIDER WHEN BUILDING YOUR SWIMMING POOL Following these tips will help you have a fun and successful swimming pool project. Before you sign that contract to build your pool there are at least 10 things that you should consider.
MOST IMPORTANTLY: ENJOY YOUR POOL Do It Yourself Pool Cleaning If you plan to “DO IT YOURSELF” USE THESE TIPS TO MAKE IT EASIER!
ENJOY THE HOT SUMMER IN YOUR COOL POOL!!!
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