WFRO60X-1
4
V4.5E
DuPont™ Water Filtration would like to thank you for your recent purchase of the DuPont™
Reverse Osmosis Filtration System
We greatly appreciate your business and the opportunity to assist you. Your satisfaction is the greatest importance to us. We hope that you will inform us if there is ever anything we can do to improve our
products. Please contact us if you have any questions or if there is anything we can do to assist you with your new product.
Reverse Osmosis, also known as hyper filtration, is the most common treatment technology used by premium bottled water companies. It is effective in substantially reducing a very wide array of
contaminants. The pores in a reverse osmosis membrane are approximately 0.025 micron in size (bacteria are 0.2 to 1 micron & viruses are 0.025 to 0.4 microns).
How Reverse Osmosis Works-
Your new Reverse Osmosis (RO) System is composed of a 3-stage system manifold, a 3000 Series pre-filter, the reverse osmosis membrane, a storage tank, a 3000 Series post-filter and a faucet to deliver
the filtered water to your countertop. First the water goes to the pre-filter, which is a replaceable cartridge that reduces chlorine, odor, sand, silt, dirt, and other sediments to improve the taste of your
water. Next, the water flows to the Reverse Osmosis cartridge, which is a tightly wound membrane that reduces the total dissolved solids and organic matter. The water goes from the membrane into
the storage tank. A diaphragm inside the tank keeps the water pressurized to about 30 psi when the tank is full. This is what provides the fast flow to the faucet. When the tank is empty, it should be
pressurized to 5 - 7 psi. As water is drawn to the faucet, it flows from the storage tank through the final filter. This is a replaceable cartridge that reduces any remaining tastes and odors to provide cleaner
great tasting drinking water to the faucet.
Your system also has an automatic shutoff valve to conserve water. When the storage tank is full and the faucet is not open, pressure closes the shutoff valve to stop flow of water with contaminants to
the drain. After enough drinking water is drawn from the faucet, the pressure in the Reverse Osmosis system drops and the shutoff valve opens to allow the tank to be re-filled.
Reverse Osmosis uses a membrane that is semi-permeable, allowing cleaner water to pass through it, while rejecting the contaminants that are too large to pass through the tiny pores in the membrane.
This quality reverse osmosis system uses a process known as cross-flow to allow the membrane to continually clean itself. As some of the fluid passes through the membrane the rest continues
downstream, sweeping the rejected contaminants away from the membrane and down the drain. The process of reverse osmosis requires a driving force to push the water through the membrane - the
pressure provided by your home’s water supply is sufficient: 40 to 100 psi.
What it removes-
Your Reverse Osmosis (RO) unit will reduce Chlorine, Odor, Particulates, Sediment, and improve taste, according to NSF 42 standards. It will also reduce Total Dissolved Solids (TDS), Pentavalent Arsenic,
Hexavalent Chromium, Lead, Cadmium, Cysts, Nitrate Plus Nitrite, Nitrate, & Nitrite according to NSF 58 standards.
Thanks again for your purchase
The DuPont Water Filtration Team
This filter must be protected
from freezing, which can
cause cracking of the filter
and water leakage.
CAUTION
Because of the product’s limited service life and to prevent costly repairs or possible water damage, we strongly
recommend that the housing be replaced every five years. If the head of the filter has been in use for longer than
this period, it should be replaced immediately. Date the top of any new head to indicate the next recommended
replacement date.
CAUTION
