Unless something changes, we will likely not be offering backflow courses in Maryland at any point in the future.
I would recommend ABC Craftmasters Mid Atlantic Backflow Academy - the other companies that offer training in Maryland are sub par in my opinion.
All of our courses utilize the University of Southern California, Foundation for Cross Connection Control and Hydraulic Research ( USC-FCCHR ) 10th Edition testing procedures and diagnostics, using derivative materials and auxiliary tests if applicable by the local authorities.
On our YouTube Channel, we created a series of videos explaining the testing procedures:
Bookwork Style YouTube Videos:
The Complete Guide to Backflow Preventer Assembly Testing ( By the Book )
RP Testing Procedures with No. 2 Check PSID Reading ( By the Book )
Field Testing Demonstration YouTube Videos:
RP Testing Procedures – EXPLAINED
Double Check Valve - Multi Hose vs Single Hose
PVB Testing Procedures – EXPLAINED
Tips and Tricks and how to Study for Backflow Practical Exams
The USC 10th Edition Textbook can be purchased at www.uscfoundationstore.com