High levels of nitrates in water are dangerous (legal limit in potable water is 50mg/l). A nitrate reduction system is made up of a high quality vessel filled with nitrate selective resin with a multi-port valve on the top. As the water passes through the resin the nitrate is trapped. Periodically this nitrate needs to be removed by regenerating with salt. As the nitrate levels vary from month to month a time based regeneration system is recommended.
This is the smallest size and is housed in a compact Mistral cabinet which also serves as the salt reservoir.
This system uses 22 litres of media with a service flow rate of of 880 litres per hour.
Assuming 50 ppm NO3 the capacity of this system is 8.8 m3. (The capacity is the volume of water the unit can treat before it requires regeneration).