OK. To use the electric valve is simple on your model. Remove the existing valve and glue on a 90 degree ABS/PVC pipe that fits your diameter. Once that is done, run a length of PVC/ABS pipe along the outside bottom on the RV to a spot where you can cut a slit in the Darco corrugated underbelly and install the Drainmaster with the valve vertical into the underbelly. That allows the electric valve to be installed at optimum. Make sure you run it where you can brace the added piping and valve. It would be better to leave the existing valve and glue to the valve exit side. That gives you redundancy if the electric valve ever fails----AND THEY DO:B Doug
