I am installing a disher in an island, there is no sink to run the drain to. I can access to a drain line under the floor but don't know the proper method of hooking it up. Any help out there?
speve48

I am installing a disher in an island, there is no sink to run the drain to. I can access to a drain line under the floor but don't know the proper method of hooking it up. Any help out there?
speve48


You will pipe this like a island sink set up (see image) using a AAV if local codes permit. If not you'll have to vent back into the drain and wet vent it.
You will also have to run a high loop or a counter top air gap on the hose before you connect to the trap raiser which will be reduced down to a pipe syubbed up that will accept one end of a Fernco Reducing Coupling, (see image). If it were me , and since I already had the drainage in place, I would install a sink and drain the DW into that. Good luck, Tom