The best filtration system known today is sand. There are two characteristic that make sand the most common substance used for filtration systems. First, the water that passes through a sand filter flows from the top to the bottom. Slots allow the sand to remain intact as the water flows through it in a lateral motion or what’s commonly known as underdrain. The water that passes through is cleaned and flows outward.
Pool grade #20 silica sand which measures between .45 and .55 mm are the most common sand used in the above ground pool sand filter. The sharp edges on these sand particles are the unique feature that allows the filtration process to take place. The dirt removed from the water that passes through it is trapped by the spaces created in the sand particles. This is commonly known as depth filtration.
The clean sand bed in the filter traps large particles. When the sand bed begins to accumulate dirt, the finer particles are removed from the water passing through.
The “waste” line functions to create back lashing which cleans the sand after each pass through.
Many pool sand filters have position settings that support continued cleaning for easy and convenient pool sand filters. The ideal water sand pump will clean nearly 28,000 gallons of water before the filter needs to be changed. An above ground pool sand filter has a capacity to hold up to 150 pounds of sand.
The more swimming pool filter sand the more clarity you’ll see in the water.
The operation of a sand filter is fairly straight forward. Plumbing is accomplished using a 360 degree valve rotation motion. There’s usually a diffuser to help even distribution continually over the sand bed. The free flowing performance is accomplished with an internal pumping mechanism. Minimal maintenance is required with well designed tanks. Most manufacturers use corrosion proof materials in the filter tank made of highly reliable thermoplastics. The under drain assembly efficiency is created using well engineered self cleaning slotted laterals for 360 degree operation to provide balanced water flow.
The tank can be easily drained without losing the most critical element in the operation which is the sand. The units are constructed for stability with corrosion free bases and measured material strength.
The next option to consider once your pool cleanliness is no longer a concern is the pool heater. Swimming pool heaters ideal for your situation may range from solar pool heaters to electric pool heaters.
The solar pool heater is a good choice because of efficiency and cleanliness.
Selecting a pool heater effective for heating spas, above ground or in ground pools means you can enjoy your pool even during the colder days and into the winter months. Regardless of what the climate is in your location, there is probably enough solar energy to heat your pool comfortably. Typical solar pool heaters can easily maintain temperatures in the 80 degree range.
The radical thing about solar pool heaters is their accessibility year round, especially in warmer climates. But if you need to have your spa and pool at an optimum temperature, electric pool heaters are probably a better choice.
These are commonly found at commercial establishments such as hotels, public pools and clubs where an electric circulation maintains a specific temperature. Electric pool heating is practical just about anywhere. But the solar option can definitely save money and operates as a cleaner pool heater resource.