Retired plbg1
First you have to cut into hw line and put a stop, then you need electric if you have Garbage Disp. on sink the there is a openning in it for a hose drain from DW, if you dont have that then you have to use a Y fitting on the house side of your trap , its a tailpiece then you need to connect water to DW with a 3/8″ copper tube for water. the drain has to go through a VB and then into the DIsp. Better get a PLumber are go to http://www.google.com and ask them how to install DW.
