What is valves under edge of R-Vision hybrid?

They have handles behind them like shut off valves. Previous owners didn't know amass I can't find online or in manual. Help? I want to know what everything is for. .

C Nash

Senior Member
LOL camping Justin Cindy one of the administrators is trying to help me now how to post a picture I do know you go to the icon right beside the smiley face to do it. i will just have to get a grand-kid to help me