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Air gap faucets for Reverse Osmosis systems dispense water just like standard non- air gap faucets, but have the air gap built into the base of the faucet. Air gap faucets are designed to prevent backflow by incorporating a "backflow prevention" method called an "air gap".
Air gap faucets have three connections on the bottom of the faucet. The center threaded stem of the faucet is the RO water inlet connector from the tank. This connection is the same on air gap faucets and non- air gap faucets alike, and can use 1/4" or 3/8" tube. There are two more connections on the bottom of air gap faucets. One large connector (3/8") and one small connector (1/4"). Use a piece of 3/8" poly tube to connect the 3/8" connection of the base of the faucet to the 3/8" inch drain saddle. Be very sure that there are no droops in the 3/8" drain line. Air gap faucets require a 3/8" drain line and a 3/8" drain saddle. The 3/8" line from the base of the faucet to the drain saddle is not pressurized, it will work by gravity, just like the sink drain. That is why it must be 3/8". The waste line from the Reverse Osmosis system is 1/4". The water pressure forces the water out of the system and it enters an air gap faucet via the 1/4" connector on the base of the air gap faucet. Internally, inside of air gap faucets the water enters a small chamber in the back of the faucet. The water enters at the top and falls into the larger hole and 3/8" drain tube in the bottom of the air gap. There is a hole in the back of the faucet the goes into the air gap. The hole is part of the air gap device. It must remain open and free of debris. A faucet without a hole is not an air gap faucet. This hole has waste water go into the top and out the bottom. Water drops past the hole into the 3/8" waste line. This water action creates noise that comes from the open hole in the back of air gap faucets. Air gap faucets are noisier than non- air gap faucets. Some homeowners object to the noise that can come from an air gap faucet. Non- air gap faucets are much quieter
Air gap faucets are required in some areas as a matter of local codes, not in other areas. You will need to check your local code to see if you are required to install an air gap faucet. In some locals you can install a inline check valve in the drain line for backflow prevention. This allows the use of a non- air gap faucet, thereby eliminating the noise associated with air gap faucets.
When code allows, the 1/4" waste water out of the system is connected to a 1/4" drain saddle installed on the drain pipe under a sink. This is also a very quiet installation. Air gap faucets can be installed as non air gap faucets by installing a 1/4" drain saddle. Remove the 1/4" waste water line out of the reverse osmosis system from the base of the faucet and attach it to the 1/4" drain saddle. Remove the 3/8' drain line from the air gap faucet and discard. See more on silencing noisy air gap faucets
Brushed Nickel Air Gap Long Reach Faucet - Replacement for drinking water systems - Prop. 65
Black Faucet - Air Gap - Long Reach TF-9830-B replacement faucet for RO reverse osmosis drinking water system.
Biscuit Faucet - Air Gap Long Reach - TF-9830-BSK replacement faucet for RO reverse osmosis systems.
White Faucet - Air Gap - Long Reach - Replacement faucet for RO reverse Osmosis Systems.
Chrome Air Gap Faucet - Long Reach GGN-FAUCET-AG-P
The perfect replacement faucet for under sink reverse osmosis drinking water systems. Works as air gap or non air gap. Quick release when drawing a glass of water or lock it on to fill a pitcher or cooking pot. This is a top selling replacement faucet for most reverse osmosis systems.
Learn how to increase the GPD capacity of a Reverse Osmosis membrane. Upgrade made easy. Low prices and fast shipping online since 1999. Millions sold.
Replacement water faucets, water pumps, tanks, UV, drain saddles, o-rings, wrenches, valves, water accumulator tanks, fittings, TDS meters, water filters, reverse osmosis membranes, parts for reverse osmosis and pure water drinking systems. Low prices and fast shipping online since 1999. Quantity discounts. Millions sold.
Chiller Daddy Water Chillers for RO reverse osmosis water purification systems - Chiller Daddy CHL-501 & CHL-750XL Undersink and under cabinet water chillr.
Water Filter System and Reverse Osmosis System Installation and Service Guide. Huge inventory of replacement water filters , reverse osmosis membranes and maintenance service parts. Low prices and fast shipping online since 1999. Millions sold.
Replacement Air Gap Faucets For Reverse Osmosis RO Systems, Pure Water Systems And Water Coolers - TouchFlo Faucets
Leak Controller For Reverse Osmosis Systems, Refrigerators, Ice Makers and Coffee Machines - AquaGate
Reverse Osmosis Storage Tanks - Water tanks for reverse osmosis drinking water systems. Low prices and fast shipping online since 1999. Millions sold.
Be sure to check our Parts Department for important parts such as TDS Testers For Reverse Osmosis Membranes, Replacement Tanks, O-rings , Filter Housing Wrenches, Faucets, Pumps, Fittings, UV Systems and more parts for your reverse osmosis pure water filtration system. View maintenance and servicing tips online at our Installation & Trouble shooting Guide.