Maintaining Proper Sand For Sand Filters

By George Brown


Maintaining the sand for sand filters is a process that should be performed on a regular basis to ensure that the pool will be properly cleared. If this duty is neglected, there may be so much dirt and debris in the water that no one will be able to swim at all. Taking care of the filtration system can potentially save a lot of money on having to hire a professional cleaner.

This type of filtration unit uses a special grade of sand as a means for straining the debris out of the pool. Liquid goes through a diffuser in order to enter the tank where it is sifted through the fine grains. Anything over 40 microns in size will be caught between the granules and not allowed to return to the swimming area with the clean water.

There are a few warning signs that will let one know that the pool is in need of some attention. For instance, when the water becomes cloudy and seems to have an extraordinary amount of dirt and debris floating in it, that means the filtration is not functioning properly. If the back wash timing shortens or the motor begins to sound strained, those are two or important signals.

Some people will wait until the absolute last moment to change the granules in the filter, but this could actually be doing damage to the system and to the motor that runs it. As a general rule, 5-7 years is all one should allow to pass between full cleanings on the filtration unit. There is a limit to how much the current grains can function effectively before they wear out and become useless.

The type of granules used in these units is ground to a size of between . 45 and . 55 mm in diameter. When new, their edges are very rough. This grit is where they get their efficiency. The sharp edges snag bits of dirt and debris as it passes through, trapping anything that is too big so that only clean water is returned to the pool.

Like river rocks, the sharpness of the grains are worn smooth over years of having water rushed over them. The rounder granules do not have the friction they once had so they clump together, allowing almost everything to simply flow right past them. If the unit is allowed to go unattended to this point, it is likely that extra sanitizer will be necessary to clean the pool, thus increasing the chemical costs of maintenance.

Each particular model of system will have a slight variation on how it should be changed. Following manufacturer's instructions is highly recommended. The systems contain a lot of pipes and valves both on the inside and all over the outside, that will need to be switched or removed during the process. Anyone not confident in their plumbing abilities may want to hire a professional to do the maintenance.

The key to a crystal clear swimming pool is in the filtration system. Making sure that only the proper sand for sand filters is used, and that it is maintained on a regular basis is paramount to keeping that clarity. For any questions about a particular model, please do not hesitate to contact the manufacture for advice.




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