Flagship Carwash, a national chain with two facilities in New Jersey, is seeking a third in Montgomery Township on what is now a vacant, 3-acre weed-infested lot at 1026 Route 518. Planner/Administrator Lori Savron told Township Committee on Sept. 17 that she and township officials have met with Flagship Carwash representatives and that an application to build the facility is forthcoming for the site located between Wawa and single-family homes.