|
Home-pool filters
Maintain sand filters
Sand filters clean pools gradually by removing dirt, debris and
particles as
the water passes through a deep bed of sharp sand. If you charge and
maintain your sand filter properly, you will be provided with years
of
trouble-free service.
The routine service method for sand filters is backwashing. One of
the
benefits of a sand filter is that it has the capability of operating
indefinitely without the need for fresh sand. Whereas, with D.E. or
cartridge filters, you must open them to clean them periodically and
replace
the media.
Depth filtration is the process by which sand filters clean the
water. This
process is accomplished when the dirt goes through the sand bed and
is
caught in the minute spaces between the grains of sand. With
cartridge and
D.E. filters, dirt and particles are caught on the surface of the
media.
The sand filter must be backwashed routinely in order for the depth
filtration to be effective. If backwashing is not done routinely,
dirt and
debris will build up on the surface of the sand bed. This will cause
shorter
cycles, channeling and inadequate filtration. However, if you
backwash too
often, you may also hinder the filtration process. If the sand bed
is
thoroughly clean, some of the dirt particles will pass through
without being
filtered. The bed will accumulate dirt and the filter will catch the
small
elements. From this situation, you may conclude that if you clean
the media
too much, it will prohibit the sand filter from working properly.
Product guide
~ About our site
~ Resource links
~ pool filters
information ~
outdoors resources ~
pool filters and
related ~
outdoors related supplies and tools
~ swimming pool
filters guide |
Pool Filters
Fundamentals.com