water tank leak

[jim heckler]

Ideas... Filled water tank for a tailgating trip that got cancelled....3 wks after filling tank checked on coach found puddle under fill area on drivers side ...tank was half full...cannot spot leak but area under grey and fresh tanks is wet...pump is and was off.... all connections see no dripping... I am thinking tank has a leak but almost impossible to see without removing...Help and once again thanks this site and its members are great... Jim

[jwmp]

Does the coach have electric tank heaters?

[jim heckler]

not to my knowledge.....

[jwmp]

It's hard to dianose without pulling the tank. Ed Wimberley here on the forum has an assortment of tanks from the Bluebird factory. The tank can also be repaired with a plastic welding kit.

[jim heckler]

yes I figured I was going to have pull the tank wasn't looking forward to it looks like quite a job thanks for your help

[fxdwg]

Jim,

Before you pull the tank, open the opposite side bay door and remove the metal panel there. You'll be looking at the backside of the water tank. The fill level sensors are right there. Maybe one leaks? Also, there's a 1 1/2" (maybe 2") line that comes off the bottom of the main tank, runs behind the water pumps and toolbox bay to the small tank. Maybe that line is leaking.

Just a couple of thoughts off the top of my head. Let's us know what you find! You're right, no tank heaters, but you almost certainly have heat tapes along the lines.

[jim heckler]

john did not know that there was a main tank and a smaller tank... see water under the small tank but will look where you said today knowing that water will run...thanks

[jim heckler]

main tank no leaks by the sensors or at the water line that feeds the small tank.....the wet area seems to be at the small tank front by the fill area... how does this tank get removed from the drivers side or the pass. side both ways seem difficult.. tank seems to big ...i am sure someone has done this any help would be appreciated....thanks jim

[fxdwg]

I have not removed a tank, so I'm only going by what I've seen of the layout in mine. I would think that it would come out the passenger side. You'd remove the various connections and slide it out.

In mine the fresh water tank is a translucent tank that you can see part of when you're filling with fresh water, but you have to look under the metal work and through the door that opens to allow access to the sewer connection on the driver's side. The grey tank is located behind the fresh tank and the black tank is in front of it. The small fresh tank is on the passenger side.

Since you're only seeing water on the driver's side, I'd be suspect of the several connection and valves that are right there. Dry up the water with something and sit and wait to see where you first notice it. You should be able to narrow it down. I would be thinking connection leak before tank leak.

Can you post a picture?