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About Reverse-Osmosis Water
Filters
How do I know which type, and size, of RO Filter
to choose?
- All RO water filters are rated in gallons per day, so think of how many gallons of RO water you will need in any 24-hour period.
- If you have un-chlorinated tap water you must use a TFC, HiF, or HiS membrane.
- Think about how pure you will require your aquarium water to be.
- Vivid Aquariums suggests the TFC, HiF, or HiS membranes for aquarium
use.
Membrane Descriptions:
CTA (Cellulose Tri-Acetate) membranes
are organic membranes and have a typical removal percentage of 88-94%.
Since the CTA is an organic membrane, it requires chlorine to purge
itself of damaging molds and bacteria. The CTA membrane MUST
be run with chlorinated water and cannot be run on non-chlorinated
water systems (wells). The CTA is highly recommended if you have chlorine
in your tap water and want to make great tasting, healthy filtered water.
The reason the CTA gives great tasting drinking water is that it is
an organic membrane and with the 88-94% removal, there are still some
trace minerals left that give the water its great taste.
TFC (Thin Film Composite) and HiF
membranes are synthetic membranes that have a removal percentage between
94-98%. TFC / HiF membranes will become damaged by
continuous exposure to chlorine. Since chlorine damages these membranes,
TFC/ HiF units are ALWAYS equipped with a carbon pre-filter that removes
the chlorine. TFC/ HiF membranes can, therefore, be utilized
on ANY tap water system.
Hi-S or High Removal membrane, like the
TFC, is a synthetic membrane and has removal percentages between 97-99.5%.
Like the TFC, the Hi-S membrane can be used on ANY water system
because it has a carbon pre-filter to remove the chlorine to prevent
membrane damage.
Maxxima’s deionization (RO/DI)
of the water after passing through the membrane polishes the water to
remove those trace elements still remaining and results in typical removal
percentages of up to 99.9%.
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