BRZ™ FOR SWIMMING POOL FILTER MEDIA
Size: 14 x 40 mesh
Color: Pale green when dry, dark green when
Particle size: Average 0.7 mm
Uniformity index: 1.9
NSF: ANSI/NSF Standard 50
Weight: Density 55 pounds per cubic
foot (880kgs/cubic meter)
Surface Area: 24.9 square meters per gram
GRAS: Classified as “GRAS” (generally
regarded as safe) under CFR 21 Part 182.279,
40 CFR Part 180.1001
Hardness: Low clay, hard, abrasion resistant
Availability: Sold as “Zeo Sand ® Natural
Zeolite Filter Media” by Zeo Inc. firstname.lastname@example.org,
www.zeoinc.com 800-530-8283 or 972-542-0053
Typically 25 to 30 pounds of BRZ™ replaces a
50 pound bag of sand.
THEORY OF ZEOLITE FILTER MEDIA
The advantages of using BRZ™ in physical
filtration systems include the following:
The high internal and external surface area
of BRZ™ (@25m2/g) exceeds that of
quartz by more than 10 times.
BRZ™ pore space permeability for water
transmission through the grains or fragments
is 100% compared to non-permeable quartz
BRZ™ will tend to make slightly acidic (e.g.
pH - 5.5-6.0) water more near neutral.
The amount, or layer thickness of BRZ™ in
the filtration systems can be much thinner
(smaller volume) than quartz sand systems -
because of the high “surface area and pore
space” of BRZ™.
BRZ™ fragments tend to be discoid shaped,
rather than round, thus presenting a large
surface area (per unit of mass) (see diagram
The density of 2-4 mm granules of BRZ™ is
about 55-60 lb/ft3, which is
about half of that of quartz grains of
similar size. Thus the volume of one ton of
BRZ™ is twice that of quartz sand.
WATER PATHS FOR QUARTZ VERSUS ZEOLITE IN