While working on the water line from tank to hand pump, I saw that one of the clips had been moved off the hose so I checked the rest of the fittings and hose to determine if anything was leaking as I filled up the tank. I found that some rags I was using that were set in next to the camper, behind the wheel well were wet.
This concerned me so I stopped the filling and then I found that there is an over-flow hose coming down the pass side of the camper that had been tucked in behind the tailgate that water was coming out of. I redirected that hose down and out of the truck bed and after letting it drain completely, resumed filling the tank. Then the over-flow hose began letting water out.
I figured that water was spraying around inside the tank to the extent that while I had barely 1/4 tank of less in there, it was hitting the fitting where the over-flow hose was attached and letting water flow out.
The solution I found was while I was filling the tank...was simply to turn down the pressure from the hose bib and then the over-flow tube stopped running.
Seems weird that was happening, but I continued to fill the tank with water (and bleach) to clean/sanitize it prior to actually using the water with no more water exiting the tank. I let it sit overnight after a short jaunt down the road to mix up the water and bleach in there and then drained it the next day. I refilled it again s-l-o-w-l-y the next day with no signs of leakage.
I thought I had a cracked tank as well, but was lucky to not only find a loose hose clamp, but I discovered that filling fast isn't the best way to do it at least unless you redirect that over-flow tube out of the truck and down towards the ground.
