Thank you for your question!
You are able to attach a portable dishwasher to this unit, but you would need the appropriate adapter to do so. Unfortunately we do not make one. The thread size of the spout is 15/16-27 female threads in case the dishwasher you use doesn't come with and adapter that works.
If the dishwasher or adapter you are using does not seal correctly in the spout, it can cause a back pressure issue and force water back around the spout tube and run under the sink. If this occurs a larger spout gasket is needed to prevent the issue. You should be able to find a larger gasket locally
Date published: 2016-03-09