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CLACK® METERED simplex nitrate filters

Clack Organic Scavenger Water Filter

Wateq provides the highest quality nitrate reduction units, all utilising Clack control valves, premium grade anion selective resin and high-quality mineral tanks.

Elevated nitrate levels are common in rural areas, in particular during the winter and autumnal months as a result of pesticides and fertilisers being washed by rainfall from fields into rivers and the water table. It’s not uncommon to have an analysis with acceptable nitrate levels in the summer and then have a failure in the winter. Even though these fluctuations occur, we recommend that you operate your nitrate system throughout the year as protection.

Each unit comes with a Clack metered valve to ensure the full capacity of the resin is exhausted before a regeneration occurs. Regeneration will only occur when the unit doesn’t have the capacity to get through the next 24 hours, saving on the running cost of salt.

The unit will raise the levels of chlorides in both the treated water and backwash water, as the nitrate ions are exchanged for chloride ions during the regeneration process. All nitrate reduction units require access to a drain or soak away where water does not find itself re-introduced into the water table.

Our nitrate reduction systems will lower the nitrate levels between 80 – 85%, this needs to be taken into account when specifying the treatment system.

key information

RefDescriptionResin Quantity*Media Volume* Capacity @ 75 ppm** Salt Usage Per Regen
SN20-C1 1.00 m3/hr WS1 Metered Nitrate Unit8” x 35”20 Litres1.0 m3/hr3.40 kg
SN30-C11.40 m3/hr WS1 Metered Nitrate Unit10” x 35”30 Litres1.4 m3/hr5.10 kg
SN40-C11.60 m3/hr WS1 Metered Nitrate Unit10” x 44”40 Litres1.6 m3/hr6.8 kg
SN50-C12.00 m3/hr WS1 Metered Nitrate Unit10” x 54”50 Litres2.0 m3/hr8.5 kg
SN60-C12.40 m3/hr WS1 Metered Nitrate Unit12” x 52”60 Litres2.4 m3/hr10.2 kg
SN75-C13.00 m3/hr WS1 Metered Nitrate Unit13” x 54”75 Litres3.0 m3/hr12.75 kg
SN100-C14.00 m3/hr WS1 Metered Nitrate Unit14” x 65”100 Litres4.0 m3/hr17.0 kg
SN150-C16.00 m3/hr WS1 Metered Nitrate Unit16” x 65”150 Litres6.0 m3/hr25.5 kg
SN200-C16.00 m3/hr WS1 Metered Nitrate Unit18” x 65”200 Litres6.0 m3/hr34.0 kg
SN250-C1510.00 m3/hr WS1.5 Metered Nitrate Unit21” x 60”250 Litres10.0m3/hr42.5kg
SN350-C214.00 m3/hr WS2 Metered Nitrate Unit24” x 69”350 Litres14.0 m3/hr59.5 kg
SN500-C220.00 m3/hr WS2 Metered Nitrate Unit30” x 72”500 Litres20.0 m3/hr85.0 kg
SN700-C220.00 m3/hr WS2 Metered Nitrate Unit36” x 72”700 Litres26.0 m3/hr119.0 kg

* Capacity based on 20g CaCO3 hardness removed per litre of resin.
** Salt usage based on 170g per litre of resin. This will increase if salt dosage is increased.

specification

RefInjector ColourBrine Tank Volume* Brine VolumeRegen TimeInlet / Outlet Options
SN20-C1Violet100 Litres7.68 Litres71 Mins3/4”, 1”, 1.25”
SN30-C1White100 Litres11.52 Litres71 Mins3/4”, 1”, 1.25”
SN40-C1White100 Litres15.36 Litres71 Mins3/4”, 1”, 1.25”
SN50-C1White100 Litres19.2 Litres81 Mins3/4”, 1”, 1.25”
SN60-C1Blue100 Litres23.04 Litres73 Mins3/4”, 1”, 1.25”
SN75-C1Yellow145 Litres28.8 Litres95 Mins3/4”, 1”, 1.25”
SN100-C1Green145 Litres38.4 Litres97 Mins3/4”, 1”, 1.25”
SN150-C1Orange200 Litres57.6 Litres85 Mins3/4”, 1”, 1.25”
SN200-C1Light Blue350 Litres76.8 Litres97 Mins3/4”, 1”, 1.25”
SN250-C15Green 15H500 Litres96.0 Litres95 Mins1.5”
SN350-C2V3010-2C750 Litres134.4 Litres77 Mins2”
SN500-C2V3010-2D750 Litres192.0 Litres92 Mins2”
SN700-C2V3010-2E1000 Litres268.8 Litres83 Mins2”

* Brine volume based on a suggested 3.2 litres per kg of salt.

dimensions

RefDescriptionWidthDepthHeightBrine Tank Diameter øBrine Tank Height
SN20-C11.00 m3/hr WS1 Metered Nitrate Unit550 mm450 mm1100 mm450 mm940 mm
SN30-C11.40 m3/hr WS1 Metered Nitrate Unit600 mm450 mm1100 mm450 mm940 mm
SN40-C11.60 m3/hr WS1 Metered Nitrate Unit720 mm450 mm1330 mm450 mm940 mm
SN50-C12.00 m3/hr WS1 Metered Nitrate Unit720 mm450 mm1590 mm450 mm940 mm
SN60-C12.40 m3/hr WS1 Metered Nitrate Unit770 mm800 mm1600 mm450 mm940 mm
SN75-C13.00 m3/hr WS1 Metered Nitrate Unit1040 mm800 mm1600 mm500 mm1060 mm
SN100-C14.00 m3/hr WS1 Metered Nitrate Unit1090 mm900 mm1900 mm500 mm1060 mm
SN150-C16.00 m3/hr WS1 Metered Nitrate Unit 1180 mm900 mm1900 mm550 mm1160 mm
SN200-C16.00 m3/hr WS1 Metered Nitrate Unit1350 mm880 mm2000 mm740 mm1275 mm
SN250-C1510.00 m3/hr WS1.5 Metered Nitrate Unit1500 mm1050 mm2000 mm840 mm1335 mm
SN350-C214.00 m3/hr WS2 Metered Nitrate Unit1500 mm1050 mm2200 mm960 mm1395 mm
SN500-C220.00 m3/hr WS2 Metered Nitrate Unit1840 mm1100 mm2400 mm960 mm1395 mm
SN700-C226.00 m3/hr WS2 Metered Nitrate Unit2000 mm1100 mm2500 mm1080 mm1460 mm

Recommended 20µ pre-filter directly before the nitrate unit

Please ensure air gap on drain to prevent potential issues

Current regulations stipulate a limit of 50 mg/l nitrate