Water Softener

Natural water contains hardness producing compounds in different concentration. Our “AFI – Softener” are based on lon Exchange process to produce “Zero” hardness water.

What is a Water Softening Plant?

A hard water softener is an appliance that uses sodium chloride, also known as salt, to treat hard water. Hard water contains an excess of minerals such as calcium, magnesium, manganese, and iron that can be an expensive nuisance for a home. These minerals are taken up in the underground water supply and, as the water is heated in the home, they crystallize and stick to household surfaces. Sodium chloride, the effective component of water softener, works to replace these unwanted minerals.

A water softener is a fairly simple appliance that is stocked with salt. In water softening process the water supply passes through the water softener over resin beds, rows of resin beads perform an ion-exchange. The resin beads chemically attract the unwanted ‘hard’ mineral ions and exchange them with sodium ions. Softener resin is mainly strong acid Cation resin.

When the resin beds become saturated with the minerals, the water softener flushes them out with a salt solution called brine and the process begins again. Water softeners are fairly easy to operate and maintain. All that needs to be done after installation is to periodically add sodium chloride and the water softener does the rest.

Sodium salts are not hard scales forming so that water without the calcium and magnesium salts is called soft water.

1.1 What is a water softener?

A water softener is a unit that is used to soften water, by removing the minerals that cause the water to be hard.

1.2 Why is water softening applied?

Water softening is an important process, because the hardness of water in households and companies is reduced during this process. When water is hard, it can clog pipes and soap will dissolve in it less easily. Water softening can prevent these negative effects. Hard water causes a higher risk of lime scale deposits in household water systems. Due to this lime scale build-up, pipes are blocked and the efficiency of hot boilers and tanks is reduced. This increases the cost of domestic water heating by about fifteen to twenty percent. Another negative effect of lime scale is that it has damaging effects on household machinery, such as laundry machines. Water softening means expanding the life span of household machine, such as laundry machines. Water softening means expanding the life span of household machine, such as laundry machines, and the life span of pipelines. It also contributes to the improved working, and longer lifespan of solar heating systems, air conditioning units and many other water-based applications.

1.3 What does a water softener plant do?

Water softening methods normally are one of the followings.

  1. Soda lime treatment
  2. Ion exchange resin based
  3. Nano filtration
  4. Reverse Osmosis

Water softeners are specific ion exchangers that are designed to remove ions, which are positively charged.

Softeners mainly remove calcium (Ca2+) and magnesium (Mg2+) ions. Calcium and magnesium are often referred to as ‘hardness minerals’.
Softeners are sometimes even applied to remove iron. The softening devices are able to remove up to five milligrams per litre (5 mg/L) of dissolved iron.
Softeners can operate automatic, semi-automatic, or manual. Each type is rated on the amount of hardness it can remove before regeneration is necessary.

A water softener collects hardness minerals within its conditioning tank and from time to time flushes them away to drain. Ion exchangers are often used for water softening. When an ion exchange is applied for water softening, it will replace the calcium and magnesium ions in the water with other ions, for instance sodium or potassium. The exchanger ions are added to the ion exchanger reservoir as sodium and potassium salts (NaCl and KCl).

1.4 How long does a water softener last?

A good water softener will last many years. Softeners have been found working from 25-30 years. Servicing, topping up etc are key to long life of a softener.

“AFI – Softener – PS” Package Softeners

Package Softeners
Our “AFI-Softener – PS”

Aqua Filsep Inc is one of the leading water softener manufactures in India. Series package softeners are small compact units ranging from flow rate of 1 m3/hr to 14 m3/hr and are designed for counter current regeneration system. This softeners are made from Fiber Reinforced Plastic (FRP), with extra strong engineering grade plastic pipe and rugged multiport valve for easy operation and control.

“AFI – Softener – IS” Industrial Softener

Industrial Softener

Our “AFI – Softeners – ISU” and “ISD” series industrial softeners are designed for longer operating cycles and low regeneration cost. The system incorporates the process technique of counter current flow regeneration and co-flow regeneration. Our standard plants ranges from 12 m3/hr to 150 m3/hr this systems are made from mild steel pressure vessels and mild steel pipes.



Sr No Model No Output Between Regeneration based on Salt Qty in kgs





1 844 10 7 5 4 5
2 1054 18 12 9 7 10
3 1354 30 20 15 11 15
4 1665 52 34 25 20 25
5 2469 128 84 62 49 65
6 3072 202 133 98 77 100


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