How Does Point of Entry Filtration Work

Designing a water management system for commercial and large residential building with consistently safe and clean water that taste great faces many challenges. Water that is processed through many water treatment plants might not be as clean as promised by the time it reaches a building’s point of entry. Reasons for this drop in water quality can range from a slow breakdown of chemical treatment levels to contamination from pipe breaks and decades of scale and iron deposits. This is the reason we need a filtration system to clean the water before it reaches us.

To make the situation worse the municipal water running through the city or town water main may pick contaminants such as lead, cysts, legionella, viruses, and trace pharmaceuticals along the way. In a nutshell, water leaving from the government buildings may meet the needs of clean and healthy water but it will get contaminated along the way easily. Just like we build a digital firewall to protect our valuable communications and data, the same way we implement point of entry filtration that we install near our home’s main water supply.

Basic functions 

There are different kinds of point of entry filtration systems. Some of them use electro-absorption technology to filter out the contaminated particles from the water. In this system, hundreds of layers of unique patented filter media made up of highly positively charge nano alumina fibers form a force field opening to catch the negatively charged harmful contaminants like viruses, cysts, trace pharmaceuticals, etc. This is the waypoint of entry filtration system works.

The addition of carbon and silver on the filter media kills the harmful elements with great efficacy. The small opening also filters out heavy metals like lead, chromium, iron, etc. This is the best technology out there when it comes to the entry filtration system.

The attraction strength for this media is so great that it allows for larger pore openings and a higher flow rate than any other entry filtration system. By ironically bonding and trapping the contaminants, they are never released back into the water flow regardless of filter loading. This means that the quality of treated water is always going to be consistent and predictable. This is the latest technology in the market right now and most people use this point of entry filtration system in their homes.

Consequently, the larger pore openings of our electro-absorptive Lead filter allow for more flow with significantly less pressure drop resulting in far less energy consumption to pump the water. Once exhausted, the filter cartridges can be disposed of in regular waste and are not considered hazardous.


Cleaning our incoming water with the point of entry system not only reduces the health risks to our occupants but also has positive benefits on all the equipment that comes in contact with it. Potential benefits include the reduction of scaling contaminants and metal build-up on pumping equipment, valves, fittings, piping, as well as heating and cooling equipment. Other advantages include the reduction of biofilm which harbors living bacteria and creates safe heaven for legionella growth in cooling towers. We hope that you understand that the use of an entry filtration system is very important for you and your family’s health.

Contact Us:

Nephros Inc.

Address:380 Lackawanna Pl, South Orange, NJ
Phone: (201) 343-5202