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Browse the store →Title, summary, and primary media.
Description, long copy, and specifications.
Filtration media Wellness-marketed
ORP Ceramic Balls are ceramic balls made to lower the oxidation-reduction potential (ORP) of water, a reading taken with an ORP meter.
Made of: Mineral ceramic; makers of this ball type use magnesium or a magnesium alloy (our supplier's recipe is not disclosed)
Form: Ceramic balls
Main job: Marketed for low-ORP or 'negative-potential' water; in practice it mainly raises pH
Used in: Waslix custom layered cartridges; also sold loose by weight
ORP is an electrical reading, in millivolts, of how oxidising or reducing water is. In balls of this type, magnesium reacts slowly with water, raising the pH and releasing a little hydrogen, and both push the ORP reading down.
Lowers ORP: a maker of this ball type quotes readings down to −600 mV, without test conditions
Raises pH: the same maker quotes pH 8–10 in treated water
Adds magnesium and dissolved solids: expected from the chemistry; not measured for ours
Evidence: limited These figures come from a maker's product listing for this ball type, not from tests of this material, and a low ORP reading is not a measure of water safety. Independent evidence for health benefits of low-ORP water is limited.
It belongs at the very end of the cartridge, because the high pH and extra magnesium it produces would make fluoride, arsenic and ion-exchange layers work less well if they came after it.
Layer position: The last layer before the filtration pad, after activated alumina, iron-based media, resins, carbon and KDF
Pairs well with: Reverse-osmosis or soft water, where makers test it; use it instead of Hydrogen Balls, Calcite or alkaline balls, not alongside them
Keep in mind: Makers quote pH 8–10 for water treated with this ball type, above the 6.5–8.5 range the US EPA recommends, so run the tap briefly after the filter has been idle
Material | Mineral ceramic, magnesium type (per makers of this ball type); composition not disclosed |
|---|---|
Form | Ceramic balls |
Spec source | Product title; material type from other makers' listings |
Before first use: Rinse, then send the first flushes to drain; fresh media gives its highest pH
Storage: Keep sealed and bone dry; damp magnesium media gives off hydrogen gas, so never store it wet in a closed container
Replacement: The supplier gives no service life; replace it with the cartridge, or sooner if a pH or ORP meter shows no change
Oxidation-reduction potential, measured in millivolts with an ORP meter. Here it falls mainly because the pH rises and a little hydrogen dissolves. It is not a measure of contaminants or of water safety.
Use one or the other. They all raise pH, and together they push it higher. Keep this layer after fluoride, arsenic and resin media, which work less well once the pH and mineral content rise.
No certification is claimed for this product. Filter media can be certified for material safety (for example to NSF/ANSI 61) and complete systems for performance (NSF/ANSI 42 or 53), but we have not found such a listing for this material.
How well any medium works depends on your water, the flow rate, contact time and the other layers in the cartridge. This page describes the loose medium, not a certified filter system.
ORP Ceramic Balls are ceramic balls sold to lower the oxidation-reduction potential (ORP) of water. Makers build balls of this type around magnesium, which reacts slowly with water: it raises pH, adds magnesium and lowers the ORP reading, most strongly in water left standing in the filter. They are marketed for low-ORP or 'negative-potential' water; independent evidence for health benefits is limited, and they remove no contaminants.
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