how to manufacture Water Purifier

Water Purifier Manufacturing Process

Clean water is vital for human beings for various daily life chores, like cooking, bathing, brushing, washing, or drinking. Regular tap water may seem clear and free from pollutants, but it possesses various microorganisms and nanoparticles that one cannot see with the naked eye. It may contain harmful chemicals like lead, mercury, arsenic, chlorine, and pesticides which can cause serious life hazards. So, water purifier is necessary to make your life healthier and better. This article will teach you about the different components of a water purifier, its manufacturing process, and its benefits.

Components of water purifier

Water supply connector

As the name shows, the water supply connector acts as the water source for the reverse osmosis filter. One end of this connector is connected to the water valve, and another lot is associated with the purifying filters in the machine.

Pressure regulator

The function of the pressure regulator is to controls the water pressure and protects the pre-filter housings. This is an optional component, and not every water purifier possess this component.

Sediment pre-filter

The Sediment cartridges are designed to remove suspended particles, dirt, grit, precipitated mineral particles, insoluble iron oxide, and other debris that can clog the reverse osmosis filters. A Sediment filter fundamentally functions like a net that catches undesired dirt particles as water flows through the system.

Carbon filter

Governments all around the world often use chlorine for the disinfection of water. Chlorine prevents the growth of harmful bacteria, viruses, and other microorganisms, but prolonged chlorine intake may cause serious health problems like cancer. So carbon filter is inserted in the water purifier to remove chlorine.

Water utilities like the Los Angeles Department of Water and Power recently started using chloramine to disinfect water. This new standard resulted from the numerous studies linking the chlorine disinfection by-products to a higher risk of cancer. But still, after disinfection with chloramine, carbon filters are needed to remove by-products of chloramine.

Solenoid Valves

When electrically energized or de-energized, a Solenoid valve is a control switch that either shuts or allows fluid flow. Its main function is to control the water supply to the membrane of reverse osmosis.

Reverse osmosis membrane

RO membrane is the essential component, and it does most of the work in a water purifier. It will remove 96% of the dissolved substances (like salts, minerals, metals), microorganisms, and organic substances in the water. The membrane will divide water into two streams: filtered water went to the storage tank, and rejected water goes to the drain.

UV components

Some advanced water purifiers contain UV lamps, UV barrel, or UV Choke to kill the germs.

Inline filters

A granulated carbon polishing filter removes any remaining tastes and odour in the water. The water flows slowly from this component, providing more ‘contact time’ and leads to higher effectiveness.

Water storage tank and drinking water faucet

The storage tank stores the filtered water from the membrane permeate and provides water under pressure when the drinking water faucet is turned on. A water faucet is a component that dispenses the purified water from the cleaner to the outside of purifier.

Following are some extra components present in some of the water purifiers.

  • Booster pumps
  • pH balancing post filters
  • TDS water quality monitors
  • Bacteriostatic KDF post filters
  • Inlet fittings/ Diverter valve etc.

The manufacturing process of water purifier

The manufacturing process of water purifier has different steps, and we will discuss each step briefly in this section.

Raw materials

First of all, before starting the manufacturing process, the factory will gather all the raw materials from another industry. Raw materials are substances that factories don’t produce on their own and purchase from other factories. These include plastic material, different metals, material to form filters, UV chambers etc. After gathering all raw materials, specialists in the factories will inspect the quality of the material. Materials that pass the standards of quality will be processed further for the manufacturing of water purifier.

Manufacturing of the case

It is the first and the most crucial step in purifier manufacturing. The plastic from the raw material is moulded, and the casing of the water purifier is created. An innovative and attractive model will attract more customers and help you in promoting the business. The case is the part that represents your product and brand in the market.

Manufacturing of motor pump

The motor pump is the component that will suck the water from the connector and adds it to the storage tank. Aluminium, iron, and plastic are used in their manufacturing. The specialists will construct all the motor pump parts using the elements mentioned earlier and assemble them tightly close to each other like a bronzed wire. This assembly is necessary as scattered pieces will cause damage to each other. The outer covering of plastic is used to cover and protect all aspects of the motor pump from damages.

RO filter membrane manufacturing

RO filter membrane is created to clean the water. This membrane consists of three layers: polyester, polysulfone, and polyamide layer. These layers will absorb viruses, bacteria, dirt particles, and harmful chemicals from the water. After the processing of water, water is sent forward to the purification line for further processing.

UV chamber

UV chambers are the vital components of a water purifier. It uses UV radiations to kill the remaining germs present in the water. Water is cleaned thoroughly after passing through it and is ready for consumption.


Assembly is done manually by workers in the assembly line. All the parts are placed in the right order inside the plastic model of the purifier. All parts like TDS, UV adapter, and UV chamber are assembled inside the plastic model. After undergoing assembly, the purifier is necessary to undergo different standard quality tests set by the government.

Quality control

The water purifier will undergo quality testing before launching into the market. Brands have to get certifications for their products from different associations like CE, EMC, ROHS before starting the marketing of the product. Also, the water from water purifiers has to undergo laboratory testing to make sure that the purifier is perfect and safe to use.

Benefits of water purifier

Impure water is the leading source of epidemic diseases in many countries around the globe. According to researches, about 7.2 millions Americans get sick every year due to water-borne diseases. Drinking contaminated water is the leading cause of water-borne illnesses.

With the increasing awareness about water-borne diseases, many people are now concerned about their health and are buying water purifiers. Following are the benefits of a water purifier.

  1. Our body has 70% of water content, so drinking purified water will provide energy to your body and keep you hydrated.
  2. According to UW Health, your skin is also an organ, just like your kidney and muscles. Drinking healthy water will give a glow to your skin and keep your skin healthy and alive. It will help with everything from your complexion to your skin elasticity.
  3. The healthy way to lose weight is by drinking pure water. Water will give you a sense of richness and decrease your appetite.
  4. There are many heavy metals like lead and arsenic in the contaminated water. Accumulation of these metals in the body causes severe health hazards and are known to be a leading cause of cancers. A water purifier will remove these chemicals from your water and give you a healthy lifestyle.
  5. Drinking water from plastic bottles, you are destroying nature in exchange for clean water. Getting a water purifier will cut off environmental pollution and keep the environment safe and clean.
  6. Purchasing water bottles for your entire family is a non-practical approach and cost a handsome amount of money. Buying a water purification system once will save you from wasting money in the long run.
  7. According to the current research, aluminium’s excess presence in the drinking water is the leading cause of Alzheimer’s disease. Once ingested, aluminium is the most complex element to excrete and may seep into your brain, causing damages. A water purifier will eliminate this hazardous element from your drink and protect you from the disease.
  8. During water treatment, chlorine is added to our waters to tackle harmful microorganisms like bacteria, but this chlorine increases the risk of cancer, heart attacks, and congenital disabilities. Water purifiers have carbon filters to remove this hazardous chemical from drinking water.
  9. Intake of a lot of purified water aids in the digestion of food. If you have constipation, drink pure water, you will surely get some relief. Water helps with regular bowel movements and keep you healthy and energetic.
  10. Clean water keeps the doctor away as it will detoxify your body and block any disease from coming near to you.


Now you know the manufacturing process of a water purifier is free from any defaults. Also, water purifiers are necessary in today’s industrialized world to keep you safe. Contaminated water can cause severe chronic illnesses. Always buy a branded and high-quality water purifier that best fits all your needs. Purchasing a water purifier is a one-time investment that helps you in the long run.

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