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PHYSICAL
SHAPE - Perma-Beads™ are specifically designed
to replace sand in rapid sand filters. Perma-Beads™
do not have any flat or porous surfaces that can stick together
as in sand or other angular or porous media. The smooth ellipsoid
shape and central bulge of each bead prevents adhesion and
bridging to other beads. This unique egg shape also creates
large interstitial spaces between Perma-Beads™ trapping
large quantities of debris thereby extending the time between
backwashes while minimizing water use.
SURFACE PROPERTIES - The very hard surface
properties of Perma-Beads™ prevent bacteria from etching
into the surface and the very slippery surface allows even
the stickiest waste to be scrubbed off when the bed fluidizes
upon backwash. In fact, as Perma-Beads™ age, they remove
smaller particles as a thin of nitrifying bacteria covers
each bead. These are the same bacteria that creates bridging,
clogging and channeling in other media, but in Perma-Beads™,
this mechanism actually serves to trap smaller particles that
are then easily removed in the backwash cycle.
WATER QUALITY -Since 1989, Perma-Beads™
have been used in thousands of filters, all are still consistently
providing exceptionally clear water. The 4,520 square feet
of surface area per cubic foot provide a significant surface
area for supplemental biological filtration, especially when
an oxygenated flow of water enters the filter canister, such
as when an AQUACUBE is place near the suction intake in the
pond.
EASILY INSTALLED - Perma-Beads™ The
dense nature of Perma-Beads™ media (1cu. ft. = 55lbs.)
prevents loss upon backwash while reducing the weight needed
to replace sand by approximately 60%. The high density of
Perma-Beads™ also eliminates the need for any plumbing
changes when switching from sand to Perma-Beads™. Simply
remove the sand and pour in the Perma-Beads™ .
PHYSICAL STABILITY- Perma-Beads™ never
need replacement and can even be repeatedly sterilized using
chlorine or muriatic acid without any adverse effects upon
the Perma-Beads™. Perma-Bead™ media is now in
continuous use in thousands of koi and ornamental pond systems
as well as aquaculture and industrial sites.
HOW TO CONVERT SAND TO PERMA-BEADS™
- Take the sand filter manufacturer's rating for pounds of
sand, multiply by .6 and divide by 55. Round up or down to
the closest whole number. This is the number of cubic feet
you need.
Please call for a price quote including UPS shipping and any
additional questions about our complete State-of-the-Art Perma-Bead™
filtration system.
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