FILTERSORB®SP3 is the result of extensive research work along with its undisputable success in the market, worldwide since 2005.
Watch®‘s core motivation for developing this product was to find an alternative to conventional ion exchange based water softeners, reverse osmosis or other chemical based systems that prevent scale.
Recent restrictions placed upon the above mentioned technology lead to an environment friendly, cost effective solution for hard water, Watch®‘s FILTERSORB®SP. FILTERSORB®SP3 completely takes care of the primary cause of scale forming cations viz. Ca2+ and Mg2+
When the hard water under goes nucleation in the pressure vessel, the calcium bicarbonate Ca(HCO3) 2 is transformed into aragonite form of calcium carbonate CaCO3 crystals. These crystals are formed through decomposition and crystallization process, forming very stable harmless crystals.
The following equation describes the reaction that occurs inside the pressure vessel when flow over grains of nucleation.
Ca(HCO3) 2→ CaCO3 + CO2 + H2O
The name fragment “SP (Scale Prevention) 3“ is to indicate this unique transformation of water hardness Ca(HCO3) 2 into 3 components viz.
1. CaCO3 (micro-crystals)
2. CO2 (colloid) and
3. H2O (pure)
In the pressure vessel, the equilibrium of carbonate species in water is changed, assisted by the driving force of stable crystal formation and therefore the reaction is pushed to the right →. With this technology, as long as CO2 is being removed the soluble Ca(HCO3) 2 converts int
3 – 5 years media life
• Nucleation Assisted Crystallization (NAC)
• Best Quality Drinking Water
• No salt required
• No backwashing required
• No regeneration cycle required
• No increase in sodium content in water
• Removes the previous scales of plumbing
• Catalytic process converts Ca and Mg into harmless micro crystals
• Maintenance free.
No extra cost incurred.
• No chemicals required for disinfection
• No electrical connections required
• No drain connections required
• No control valves required
• Very easy to install
• Great savings against convetional salt based water softeners
• Provide the best quality healthy water without the addition of
The calcium carbonate crystals grow steadily. They are very stable and cannot dissolve (incapable of forming scale) in the water.
Glass grains crystallization sites provide increased nucleation sites for the formation of submicron sized CaCO3 crystals. Hence this amazing process is called NUCLEATION ASSISTED CRYSTALLIZATION or NAC in short.
Lifespan of the Media The effective average lifespan of FILTERSORB® SP3 is 3 to 5 years, depending on the feed water conditions.
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