There are two designs, Neptune FTF-2HP and Neptune FTF-5HP. For larger water systems, purchase the 5 gallon feeder in order to reduce the number of times chemical needs to be added into the feeder to get the proper levels into the water system..
Do I need a Chemical By-Pass Feeder? If you have a close loop chemical a by pass feeder or pot feeder should be installed so chemical can be added to the system. Chemicals are required to reduce corrosion rates or to control bacteria growth. Without a chemical feeder high pressure pumps will be required to inject the chemical into the system.
What chemicals can added to the By-Pass Feeder? Both Liquids and powders can be added to the Feeder.
What size filter bags are used in the FTF feeders? The Neptune FTF filter feeder units are designed to use four different size filter bags, which are 1, 5, 20, and 50 micron sized Neptune filter bags.