My truckmount starts and runs great.I do a few rooms then turn it off to spray and let dwell some other rooms but on trying to restart sometimes it goes blank on the key start altogether or starts then stops almost straight away.Eventually after emptying the waste and leaving it a few minutes it starts fine and runs fine again.I have not done enough work to fill even half the waste tank but it seems to be dribbling out of the tap before i release it.Any ideas boys(i have the steamway 9100lx and it has been well looked after)Regards Alan