Stainless steel Whole House Nitrate Removal system with a stainless steel tank and automatic backwashing. The system uses specially designed nitrate-selective ion exchange resin to remove nitrates from drinking water.
Nitrate ( NO3 ) comes into water supply through a nitrogen cycle. It is one of the major ions found in water. Most nitrates in drinking water are a result of runoff from fertilizer use, leaching from septic tanks and natural deposits. US EPA MCL level for nitrate is 10 mg/L (ppm).
How Whole House Nitrate Filter System works
Water travels through 3 stages of filtration:
First stage, water flows through a 20" sediment filter cartridge that removes sediment, silt, sand and dirt. Also extends the life of the water softener, water filters, and prevents damage to control valves or pumps.
Second stage, water flows through a nitrate reducing mineral tank.
Third stage, water flows through a 20" solid carbon cartridge for removing volatile organic carbon compounds (VOC's), insecticides, pesticides and industrial solvents.
Nitrate Water Filter Regeneration and Preconditioning
Sodium chloride is generally preferred for regeneration for reasons of cost and efficiency. When available sea water can be used quite effectively. The use of softened water for make up of regenerant and rinse is often recommended to avoid the precipitation of calcium carbonate in and around the nitrate selective resin (or any other resin used in this application). Although the precipitation is not particularly detrimental in the short term, the long term effects may include increased resin attrition and leakage of nitrates.
Nitrate Whole House Filter Stainless Steel specifications
Solid 316-Stainless Steel Tanks: heavy-duty, burst-proof construction filled with Nitrate reducing media.
Brine exchange mineral tank.
Riser style 1" internal flow distributor.
Solid state microprocessor with LED display Electronics control valve
Maximum Flow Rate: 11.0 gallons per minute.
3/4" or 1" Stainless Steel Bypass Valve.
1 year System Manufacturer Warranty, 5 years Controller, 10 year Warranty on resin tank and brine tank assembly.
Filter and Media Replacement Intervals:
Resin Media Life: 1.5 cu.ft - 5-7 years, 2 cu.ft - 7-8 years
Filter Life, sediment pre-filter and carbon post-filter: 6-9 months