dishwasherdrain-waste-ventplumbing
I just bought a new dishwasher for a newly renovated house that I just bought.
I am trying to install it myself.
My sink drain pipe has one of these sticking out the side above the U pipe thingy like the bottom right most example.
Do I just go to town on the end of that with a hacksaw and clamp on the drain hose?
Edit:
My sink drain looks like so with the bushing circled. I do not believe there is a hole on it.
I can only think of three options here...
The first (less optimal) option, is to raise the discharge up and allow it to flow down to the drain connection. In this scenario, you'll want to have the discharge tube go up to an air admittance device (AAV) or air gap. From there it should flow downhill (1/4" per foot), until it reaches the garburator connection.
The other option, is to discharge the dishwasher to its own drain. Install a properly vented standpipe near the dishwasher, and connect the discharge tubing to that (follow local plumbing codes).
The last option is to run a drain line under the floor, and attach to the sink drain below the floor. Install a trap near the dishwasher, and run a proper drain that tees into the sink drain (follow local plumbing codes).
I have had my Bosch dishwasher for about a year using the same setup you contemplate, so I'm familiar with the exact drain connector you have on the dishwasher hose. On mine, there was something of a taper between the 1/2 and 3/4 section and being rather flexible rubber, and I had no difficulty stretching the 1/2 section of the fitting to fit on the 5/8 gap fitting. I then tightened down the hose clamp with a hex bit on my cordless driver. The clamp was tight enough to somewhat compress a groove into the rubber, and I tugged on the thing as hard as I could. It isn't coming off IMHO. I'm at work, but can send a picture later if you need.
I understand you are worried somewhat about the quality of the connection. You could get a 1/2 to 5/8 adapter like this:
But that would entail 3 hose clamps and a section of 5/8 ID hose to connect between the adapter and air gap. That seems like more points of failure. At any rate, I think you already have what you need to get this working.
Best Answer
"Do I just go to town on the end of that with a hacksaw and clamp on the drain hose?"
Yes. The end is capped so that it can be installed without being connected to anything. Leaving it uncapped would leave it open for leaks if you were to fill the drainpipe.
Just cut off the end as near to the cap as you can reasonable fit a saw, and slip the hose over it. For added security, use a hose clamp to secure it.