After mice chewed through my stock thin plastic dishwasher drain line, (ruining our kitchen floor, leading to a homeowners claim), I'm replacing that line. I refuse to use the cheap, stock dishwasher drain lines. Besides being too short, mice could chew through them again. We have extra cabinetry between the dishwasher and sink, making this a longer-than-usual run.
I have some new, black, thick, reinforced hose that mice will not chew through. This new hose is 1 inch OD, and 5/8 inch ID which will slip onto the sink garbage disposal perfectly.
The dishwasher drain outlet is unthreaded, and 1.25 inch (1-1/4") diameter. Thus, it is larger than the OD of the hose I'm using. Connecting the hose to that drain outlet is the trick.
What I wish for is a 1-inch to 1.25-inch flexible coupling, since that plus two hose clamps would render this job complete. But despite many attempts (both online and at multiple plumbing supply places), I've found no such part. This is close, but is the wrong size:
As a further constraint, I do not want to insert anything into the new hose that would reduce the ID. I've already burned out one pump in this dishwasher due to debris clogging at the drain hose connections.
So the question I have is this: how can I create a solid connection between this hose (1" OD) and the dishwasher drain outlet (1.25" OD)?