Responsible for keeping the entire volume of water in a swimming pool clear and safe to swim in, a filter is one of the most important machines in the operation of a pool. It eliminates dirt and debris which make the water cloudy and can encourage algae and bacteria growth. Both inground and above-ground pools can be equipped with one of several styles of pool filtration systems, each with its own benefits to the user.
The water in a swimming pool typically cycles through the filter several times every day. Although the techniques vary from one filter design to the next, they all basically operate by pumping the water through a barrier which traps particles of dirt and such, removing it from the swimming pool. They differ in terms of price, care and maintenance, and in the benefits they provide.
What is referred to as the filtration "system" includes both the filter itself and the pump. The latter pulls water from the pool into the former, where contaminants are filtered out, then the clean water is pumped back into the pool. Well-made systems can last for years, and ultimately they will help reduce the time and money one spends on the pool's upkeep.The basic types of filters are the cartridge, sand, and diatomaceous earth (DE) models, which are all compatible with inground and above-ground pools.
Sand filters are the most common type. Water is filtered through a sand bed inside the filter which traps debris with a size of 20 microns. They are easily cleaned by simply running water through them in the opposite direction, and the sand can be used for several years before it will need to be replaced. Affordable and easy to operate, they are a popular choice with many who own pools.
Another simple to use, low-maintenance, affordable option is the cartridge filter. Capable of filtering particles as small as 10 to 15 microns in size, this method uses a replaceable cartridge element for keeping the water clean. Cleaning is easy and can be accomplished with either a garden hose or with a filter cartridge cleaner product. Normally they should be replaced each swimming season.
DE or diatomaceous earth filter systems offer the ultimate in speed and efficiency. They can eliminate the very smallest particles of debris which are only 3 to 5 microns in size, and work quickly to produce crystal clear water. The substrate contained within them, known as diatomaceous earth, is a porous, natural rock sediment which has been ground into powder. While typically more expensive, this approach does offer superior results.
Whichever type of filter one chooses, it's always best to select a model which is larger than the minimum required for the pool's size. This will cut down on the time needed to spend cleaning the filter. Selecting a system with the lowest amount of pumping to achieve the flow rate is also wise, as this will help reduce operating costs.
Basically, the filter one selects for their pool should reflect their priorities. If the user's primary concern is a simple design which needs minimal maintenance, either a sand or cartridge filter would be suitable. Whereas those who are focused mainly on having the clearest water possible, should go for the DE filter.
The water in a swimming pool typically cycles through the filter several times every day. Although the techniques vary from one filter design to the next, they all basically operate by pumping the water through a barrier which traps particles of dirt and such, removing it from the swimming pool. They differ in terms of price, care and maintenance, and in the benefits they provide.
What is referred to as the filtration "system" includes both the filter itself and the pump. The latter pulls water from the pool into the former, where contaminants are filtered out, then the clean water is pumped back into the pool. Well-made systems can last for years, and ultimately they will help reduce the time and money one spends on the pool's upkeep.The basic types of filters are the cartridge, sand, and diatomaceous earth (DE) models, which are all compatible with inground and above-ground pools.
Sand filters are the most common type. Water is filtered through a sand bed inside the filter which traps debris with a size of 20 microns. They are easily cleaned by simply running water through them in the opposite direction, and the sand can be used for several years before it will need to be replaced. Affordable and easy to operate, they are a popular choice with many who own pools.
Another simple to use, low-maintenance, affordable option is the cartridge filter. Capable of filtering particles as small as 10 to 15 microns in size, this method uses a replaceable cartridge element for keeping the water clean. Cleaning is easy and can be accomplished with either a garden hose or with a filter cartridge cleaner product. Normally they should be replaced each swimming season.
DE or diatomaceous earth filter systems offer the ultimate in speed and efficiency. They can eliminate the very smallest particles of debris which are only 3 to 5 microns in size, and work quickly to produce crystal clear water. The substrate contained within them, known as diatomaceous earth, is a porous, natural rock sediment which has been ground into powder. While typically more expensive, this approach does offer superior results.
Whichever type of filter one chooses, it's always best to select a model which is larger than the minimum required for the pool's size. This will cut down on the time needed to spend cleaning the filter. Selecting a system with the lowest amount of pumping to achieve the flow rate is also wise, as this will help reduce operating costs.
Basically, the filter one selects for their pool should reflect their priorities. If the user's primary concern is a simple design which needs minimal maintenance, either a sand or cartridge filter would be suitable. Whereas those who are focused mainly on having the clearest water possible, should go for the DE filter.
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