Dispatch for humidifier leaking in the utility room. After inspecting the humidifier and drain lines. I found the compression bolt on the outlet side of the solenoid leaking. After tighten the compression bolt, there was still water flowing out of the drain line. After examining the drain line, I discovered it was flowing back towards the furnace. This was creating it to not drain and was back-flow flowing. After correcting the pitch of the drain the water from the humidifier and the condensation from the furnace flow to the drain. Thank you for choosing LBA services.