Hi @omid_motamedi,
Thank you for your question and welcome to the Bunnings Workshop community, it is fantastic to have you with us.
It should be fairly easy to do, but the specific products will depend on the diameter of your spout, the specific bench-top dishwasher and the size of the inlet hose that it uses.
If you take a look at the underside of the spout, there should be a thread inside it that you can attach an adaptor to. Depending on the diameter of the thread in your spout and the diameter of the thread on your inlet hose, you might be able to use a Brasshards 20mm Brass Threaded Hexagon Nipple or a Brasshards 15mm Brass Threaded Hexagon Nipple.
Once this is installed, it should be as simple as connecting the inlet hose to the tap and turning it on when required.
Let me know if you have any further questions.
Jacob
