OK I thought I mentioned this but... I downloaded the manual. I found the valve in question. I turned the valve 1/4 turn. The valve only turns one way and it will only turn 1/4 of a turn so I know I'm doing that correctly. Also there is a diagram on a sticker inside of the holding tank bay that shows the correct valve alignment. I have turned the valve as specified in the manual and as specified on the sticker inside the holding tank bay. The problem I am having is not getting water through the valve and back to the rear of the coach where the tank is located. Water flows through the tubes and back to the tank area. The problem is that the line through which the water flows seems to be set up to try to push the water through the pump in the direction opposite of the pumps normal flow direction. I am trying to figure out if this is correct and I am not doing something else right or if perhaps someone has incorrectly installed the fill lines. Rest assured that I have read the manual. I have also read the Shurflo installation instructions. I have also read the ehow articles on troubleshooting RV tanks and pumps.
