My black water dump valve is the type with the cable. Mine was an absolute terror to replace. I could not get enough separation between the pipes in order to get the valve installed smoothly. I ended up using one of the bolts and a nut to separate them enough to get the valve in position. I also had to put the seals on opposite than what the instructions called for (can't remember if the instructions called for on the valve or on the pipe) in order to have enough clearance to get the valve in place without disturbing the seals. After my third try I got it installed. Had to cut a hole in the underbelly as well to get to the valve and lace it up with wire ties. I say all this hoping that yours is on the end of the drain and not under the belly like mine otherwise consider this a heads up. Two people may be able to do the job smoothly.