Lowered into a Sludge Tank (Score 1)

I had a job with Frito Lay one time. The potatoes would come off of the trains and get washed. All of that garbadge off of the potatoes was supposed to go to a large underground tank then get pumped onto a large field to get rid of it. Sounds efficient. Well, the sand clogged the pumps in the tanks. It was my job to go down into the tank, let the tank partially fill with water. (there was a three foot dia pipe in the wall that I would yell go and the guy in the building above ground would thur a switch and water would com flooding in.) I then adgitated the wand a sludge and held the end of a pumper and pumped all that stuff out.