Replies

1. 
   Len | Jul 14, 2003 05:53pm | #1

   What's not close enough?

   The dishwasher pumps the water out so you can just extend the hose.

   You have to go from the dishwasher to an air gap which needs to be located on a sink in case it clogs.

   Adding a waste line will require a trap, vent and the air gap for the washer.

   Len

2. 
   Jamie_Buxton | Jul 14, 2003 06:20pm | #2

   Yes, a dishwasher does not have to share a sink's waste line.  You can install it across the room or around a corner.  It does need a P-trap, like any other connection into the waste system. 

3. 
   steve | Jul 15, 2003 06:11am | #3

   dishwaher drain does not have to go to the sink area, but remember to have a loop up at least 24 preferably 30 inches before the drain.

   air gaps are are local thing, never seen them in ontario canada, however the drain must have a trap before entering the stack

   automotive heating type hose makes an excellent extension for the drain hose and is easily available anywhere, i usually put a short piece of 1/2 inch copper pipe inside the joint to prevent collapse from the hose clamps

   caulking is not a piece of trim

1. 
   DaveRicheson | Jul 15, 2003 04:42pm | #4

   Air caps are recommended with most dishwasher intallation when discharging to a sink waste line. They are really just another form of vacum breaker. The dishwasher sump always has some water left in it after it has been run, thus creating an internal trap of sorts. The air gap serves as a vacum breaker between the sink trap and the dishwasher sump so the sump water is not siphoned out when the sink drain is used. The purpose of the wet sump in the dishwasher is to keep any leftover food waste soft. Once food in that sump dries out it can be like gravel going through the pump, breaking off the impeller blades in the pump.

   Dave

1. 
   steve | Jul 16, 2003 04:06am | #5

   yes i realize what they do, but in many places they are not required

   a local oversight? or a more zealous code in some places?caulking is not a piece of trim

1. 
   DaveRicheson | Jul 16, 2003 12:46pm | #6

   Probably more of an indication of how much influience someone has on local code requirements, either plumbers or manufacturers. They are in our state plumbing code, which is suppose to be used in all jurisdictions unless local codes more stringent. It is even in the test for journeyman plumbers, but I have workrd in counties that don't  enforce the code so.......

   I am not a plumber, just a remodeling contractor. I have installed  somewhere in the neighbor of a hundred or so over the years. When in doubt, I always err on the side of the state code, so I have never failed an inspection for having an air gap installed.

   Dave 

4. 
   user-1116046095 | Jul 16, 2003 02:30pm | #7

   Why would you want to install a dishwasher so far from the sink? From a functional standpoint, most folks rinse the dishes or at least scrape the larger pieces of food off into the sink, then load the DW. The DW should be fairly close to the sink, IMHO.