Sippican Elementary sixth graders turned Saturday's car wash into a fire engine wash, creating a waterfall of suds and having the kind of fun kids normally associate with what happens on the weekends before school is back in session. Organized by Volunteers at Sippican Elementary (VASE), the school's 501(c)(3) non-profit parent-teacher organization, the event held at the Marion school's bus loop off Main Street raised money for the students' mountain classroom trip, a three-day excursion planned for June 20