Drain Valves

scotty

Well-known member
:confused: New owner, old RVer, just purchased a used 06 Big Horn 3400, no manuals. What are the two smaller valves located directly below the outdoor shower panel? The handle for the valve on the left, facing the water panel, is position straight down and the handle for the valve on the right is positioned at a 45. I know these are probably drain valves but not sure. Also where is the fresh tank drain valve located?

Thanks in advance.
 

Ray LeTourneau

Senior Member - Past Moderator
scotty, are you referring to the two valves in the docking center? They should be labeled. The one on the right can be used to drain the fresh water tank using the on board water pump. Heartland made several changes to the fresh water drains and venting between 2006 and 2008 so pictures help a lot when trying to understand what folks are referring to when asking questions. The gravity drain valve for yours should be under the rig just inside the frame rail a bit forward of the sewer connection. It should have a brass ball valve on it.
To bypass the HWH you will need to access the rear of the docking center. On the back of the HWH are the valves to bypass it. You will also find the water pump and winterizing hose and if you have one, the valve for the ice maker in the reefer. The access panel is just inside the storage area and it's held in place by a few screws around the perimeter.
 
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