The Uniform Plumbing Code (UPC) is written by the International Association of Plumbing and Mechanical Officials (IAPMO).

As Hydro's chemical dispensers fulfill ASSE 1055 requirements and consequently, meet UPC standards, our equipment is acceptable from a plumbing regulatory standpoint anywhere the UPC is adopted.

According to IAPMO:

Chemical dispensing systems manufactured with self-contained means of backflow protection and classified as follows:

1.3.2.1 Type A Devices

Type A devices shall include a backflow protection device that conforms with one of the following National Standards:

(a) ANSI A112.1.2 Air Gaps in Plumbing Systems;

(b) ASSE 1001, Pipe Applied Atmospheric Type Vacuum Breaker;

(c) ASSE 1013, Reduced Pressure Principle Backflow Preventer;

(d) ASSE 1020, Pressure Vacuum Breaker; or

(e) ASSE 1056, Back Siphonage Vacuum Breaker

Type A: Devices that include backflow protection

Type B: Devices that include backflow protection located downstream of shut-off valve or include pressure bleeding device. To be used for mixing potable water with chemicals to provide the user with a chemical solution which is ready to use. Manufactured in compliance with ASSE 1055-97. To be installed in accordance with the manufacturer's instructions and the latest edition of the Uniform Plumbing Code.

For a complete and up-to-date copy of the Uniform Plumbing Code, please contact IAPMO.