5 Hour Backflow Update September 30 @ 5:00 pm - 9:00 pm Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States 👉 Register
Group 5 October 13 - October 16 Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States
Group 6 October 20 - October 23 Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States
Group 7 October 27 - October 30 Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States
Group 1 November 3 - November 6 Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States
Group 2 November 10 - November 13 Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States
Group 3 November 17 - November 20 Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States
Group 4 December 1 - December 4 Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States
Group 5 December 8 - December 11 Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States
Group 6 December 15 - December 18 Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States
Group 7 January 5, 2027 - January 8, 2027 Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States
Group 1 January 12, 2027 - January 15, 2027 Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States
Group 2 January 19, 2027 - January 22, 2027 Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States
Group 3 January 26, 2027 - January 29, 2027 Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States
Group 4 February 2, 2027 - February 5, 2027 Plumbers & Steamfitters Local Union 33 Hall 2501 Bell Avenue, Des Moines, IA, United States