ZeoPlus is a naturally occuring mineral rock, found in areas where there has been historic volcanic activity. Its microporous structure and ammonia removal properties will significantly improve the quality of your swimming pool water. 

Waterco conducted the following tests on Zeoplus/ Garnet's

filtration and ammonium adsorption capabilities:

Filtration Effectiveness below 5 microns

The combination of Zeoplus and Garnet produces a filter bed capable of filtering particles between 5 and 10 microns.

Media Specifications


Product FromRed Angular Grit
Hardness4.5 - 5.0 Mohs
Product Size1.0mm - 2.2mm
Product Particles SizeCubic to blocky
ROM oreCoarse grained, altered vitriv, ash-fall tuff
GeologicalCarboniferous (Cira 300 million years old)
Main Zeoplus MineralsMordenite and Clinoptilolite 
DensityApprox 1100 kg/m3
Specific Gravity2.2 / 2.3
Ammonia Exchange CapacityAround 65-79 meq/100g

Please Note :  Zeoplus is less effective in ammonia removal in saltwater pools than in freshwater pools.


Hardness7.5 - 8 MohsDensityApprox. 2400 kg/m3
Particle Size0.2 - 0.6mmSpecific Gravity4.1

Superior Filtration plus Ammonium Reduction

Waterco has devised a filter bed of Zeoplus and Garnet able to achieve effective filtration down to 5 microns with the added benefit of Ammonium adsorption. Garnet (0.2 - 0.6mm) is the means to very fine filtration. However, a filter bed entirely made up of Garnet (specific gravity 4.0) would result in increased head loss, backwash flow rates and a decreased service run. Therefore a lighter (specific gravity
2.4) and coarser (1 - 2.2mm) upper layer of Zeoplus is implemented to lower head loss, backwash flow rates and extend the service run.

Superior Depth Filtration

Glass Pearls operate on the basis of "depth filtration" dirt is driven through the filter bed and trapped in minute spaces between the particles of filter media allowing the cleansed water to pass through.