I am installing a new Bosch dishwasher and have run into a conundrum hooking up the drain. The parameters are the following:
- The dishwasher drain hose has a rubber bit on the end marked 1/2" and 3/4". It steps directly from 3/4" to 1/2" without an intermediate 5/8" level. The dishwasher is otherwise completely installed, so I would prefer not to pull it out to put on an entirely new hose.
- The air gap has a 5/8" inlet and 7/8" outlet.
- I want to drain into a garbage disposal with a 1" inlet.
This leads to two problems:
The drain hose appears not to fit the air gap inlet. I suspect I could jam it onto the air gap inlet with enough force, but I'm worried about longevity.
I do not mind replacing the air gap, but I've been unable to find one that had a 1/2" or 3/4" inlet and 1" outlet. Everything I've found, both locally and on the Internet, has 5/8" inlet and 7/8" outlet.
I need some way to connect the air gap outlet to the differently sized inlet on the disposal or (less preferred) some other part of the drain under the sink. I only need a couple of feet of hose.
The previous dishwasher had no air gap at all; it connected directly to the disposal (which led to at least one adventure I'd rather not repeat).
Right now I've taped the hose to drain into the sink, so do I have some time to do it right.
I'm puzzled because this seems like a common situation, so I wonder what I'm missing.
Here is the situation. The red arrows are the two connections I am trying to make.
End of dishwasher hose:
Disposal inlet (the rag is simply to prevent leakage so we can use it while I solve this hookup problem):