Water Filtration for Swimming Pools

It does not matter if you have the best above ground pool or the in ground pool, if you do not take care of the water it will grow bacteria and algae. The water will turn green or brown. Swimming will be irritable and eventually disgusting. You should not let the water change the color to green or brown because cleaning the water at that stage will be time consuming and expensive. The process is call “Shocking the Pool”. Sometimes even shocking may not work and you will have to change the whole water and it’s a lot of water.

Types of Dirt Pools Collect

Pools have a large open surface area and it collects all the dirt in the air. If you pool is near trees, it will collect dead leaves and small twigs. When the wind blows of during storms the dirt, leaves and twigs collection will be increased many folds.
Other things that the pool water collects are oil and lotions that you or any other person who is using the pool has put on them. Then you have body skin that constantly shade no matter what you do. Then there is hair falling off, soap that you are using and so many other things.
You can reduce some of these by using pool cover when the pool is not in use.
Algae growth rates depend on the weather. Moist and damp weather is ideal for the growth of algae.  This is why there is an algae bloom right after a long period of ran. Algae grows faster in stagnated water. Water movement can be created by the use of the pool pump. There will always be part of the pool where water is stagnated, like the corners of a rectangular pool. Manual cleaning may be required to clean the buildup.

Dirt Sizes

The dirt sizes in the pool may vary from few inches to all the way down to microscopic level. For large dirt that float on the water use pool skimmer and pool net. Use pool vacuum for dirt on the floor of the pool. Pool vacuum also can clean up a lot of algae.
For living organism that grows in the pool, like algae and bacteria, you will need to use chemicals like chlorine, bromine etc. For dirt that are smaller you will need to us water filters.

Water Filters and Filter Pumps

If not part of the package, pool filter pump should always be bought along with the pool. It like, if you are having a pool you must have a filter pump as well. Buying a filter pump should never be an afterthought.
When you buy the pool for the first time it may come with a filter and water pump that are part of the package. Most of the time you don’t have anything to say about the type of the filter or the capacity. Usually the capacity of the pump is adequate for the size of the pool. Usually the bigger the pool the higher the capacity of the pump. But the local weather and environment also play a part in calculating the capacity of the pump. Nonetheless, pump capacity is very important. Please note that pumps and filters are two separate units.
There are three basic types of pool water filters.
Cartridge Filter
Sand Filter and
D.E. (Diatomaceous Earth) Filter
Each of these filters have their own advantages and disadvantages. Most of the time sand or cartridge filters are part of the pool package.

Cartridge Filters

Cartridge filters are the simplest and easiest to assemble and maintain. The cost range somewhere in between sand filter and D.E. filter. This filter can filter out smaller microscopic debris than the sand filter. The cartridges need to be cleaned from time to time. The frequency of cleaning depends on the pool usage and debris collected from surrounding area.

Sand Filter

Sand filter are the lowest in cost as compared to the other two types. It also very easy to maintain. You don’t have to take out any parts to clean, like in case of cartridge filter where you have to clean the filter. Water is filtered through silica sand which catches micro particles from the pool water. One drawback of this type of filter is that it cannot catch some very small microscopic level particle. Otherwise it is very effective in keeping the water clean.

D.E. (Diatomaceous Earth) Filter

D.E. filters can filter out the smallest microscopic particles from the water. It filters out almost anything upto 5 micron particles in the water and gives you the best crystal clear water. This type of filter requires little maintenance.

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