I guess one of the first rules of dumping is to make sure the endcap is off the end that you stick in the trap before you fill the sewer hose with the black water!
I couldn't figure out why I pulled the lever and heard the hose fill but nothing went into the ground. I thought I had a blockage somewhere. When I removed the hose from the trap I noticed I forgot to take the cap off! Now what to do with a hose full of sewer that I can't suck back into the rig!??!
First I removed my shoes, then rolled up my capris. I already had rubber gloves on. I turned on the water to the hose used to clean up afterward and pointed it at the endcap while I gingerly removing it. Ewwwww!! and PU! It wasn't as bad as I thought it would be, but still I didn't want to have to actually
see any thing. I did have the dry heaves for a few seconds until I got it all washed down.
Huge lesson learned!!!