So here's an update to this mess.
I stressed about this the entire week and couldn't do much about it until Saturday. While on a 6 hour road trip Wednesday I stopped in to a Camping World outside of Kansas City and purchased a Flush King.
Saturday I attached the Flush King and turned the water on. I went inside the camper an opened the toilet valve to look into the tank. I could see water was flowing into the tank. Positive direction I'm thinking. I didn't let it get very full, I just wanted to see what I could flush out immediately so I dumped the tank. Nothing but clear water came out. Weird I thought, it didn't flush any poo out. So I turned the water back on and allowed it to fill the tank until the water started coming up the stand pipe between the tank and the toilet. I shut the water off and flushed the tank. Again nothing but clear water. Again I an stumped so I go get a 6 foot piece of 3/4" PVC pipe and stick it down the toilet. Low and behold the pipe hit dry bottom. I thinks to myself, surely the tank hasn't been fully clean all along and I was just mistaken about it being clogged.
I did notice a piece of debris in the tank and originally thought that was toilet paper floating around. When I tried to move it, it was stuck to the bottom of the tank and actually appears to be a piece of white glue of some type about 1/2" wide by 2.5" long.
I filled the tank up to the toilet stand pipe again and flushed it, nothing but clean clear water came out.
So I guess in the beginning the tank was completely empty, I just didn't realize it and I stressed about the situation all week for nothing. After I thought about it my attempts to push a hose up the drain pipe into the tank was working as planned. What I didn't realize is the hose was going completely up inside and hitting the back side of the tank. That's why I could shove 8-10 feet hose into the tank and only get the water out I was putting into it from the hose end.
At this point I'm not even sure what made me believe the tank wasn't empty in the first place other than the fact it didn't seem like it took long enough to dump. I remember thinking "ow, that didn't take long there must be a clog". I guess it's better it turned out this way rather than the opposite.
On a side note, I really like the Flush King. It allows you to fill the take with water in about 3 minutes so you can completely clean it out. I'll be using this along with the tank sprayer from now on.
2010 Eagle Super Lite 315RLDS
2018 GMC Sierra 3500HD 6.6L Duramax
2010 Nights 45
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