Check all your water connections, especially around the pump and city water connections. Run a tank of fresh water through the entire system, then check and clean the pump inlet screen, it's amazing what comes out of the fresh water tank (like plastic and sawdust). Chaeck, also, the aerators on the faucets in the head and galley, they are good at catching stuff too.
By the way, you'll love the Roo.
Tow Vehicle: '92 F350, Crew Cab, 4X4, Cummins 5.9 24 Valve, 6spd.Driver:Clint, Navigator:Melanie, Entertainment: 3 Boys (24,22,20) and now girlfriends too, 1 dog (Great Pyrenees/Akbash cross). Mission Statement: Just another adventure! Towed vehicle:2009 Roo 19 with lots of mods!