OPer here:
Please call me dummy!!!!!!!!!!!
I just went out and looked at the spot over the rear jack stabilizer where I saw the water pouring out. I found a 3/8” white plastic pipe nipple. Evidently when I saw the water pour out, I thought I had burst the FW tank. I had no clue that Heartland had installed two overflow vents on their Bighorn model. One vent installed on each side.
I was pumping water in on the driver side and watching the vent on that side. The FW tank was actually venting the over flow out of the vent on the passenger side.
DAH! Bozo……me….:o
Thanks folks for the help, again.
Lakeside