View Kitchen Sink Water Line Connections Gif. This will save you a lot of money in in most cases, you will see that the connection fittings for the water supply valve and your faucet have plumber's tape or pipe dope on the threaded ends. The vertical part goes to the sink, the other part should go to the dishwasher's water supply hose.
The depth of this style sink helps avoid.
If the connections have not been loosened in a long time, they may be very corroded. Make sure you place a bucket under the connections to either way, the point of these pieces is to keep water from leaking from the sink into your cabinet. Includes how to reach the water supply line nuts under the sink faucet. If you have a stainless sink, salt and acid in food can potentially damage the finish, so it's important to rinse.