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George E. Cawthon wrote:
wrote:
Hi,

I'm building a new home, and the builder just called to let me know his
plaumber had told him that my dishwasher was too far from the kitchen
skinks drain vavle.

I know the length most dishwashers come with is around 2 meters. My
dishwasher is going to be just over 3 meters from the dishwasher.

If the dishwashers pump's aren't designed to pump water tgis far, isn't
it as simple as extenting the plumbing under the sink to a bit closer
to the dishwasher?? I'm confused as to what restrictions apply here.
The other option is to have the dishwasher on either side of a corner,
means 2 doors will be blocked ehwn the diswasher door is open. I'd
like to avoid this option but i don't want to be left with a dishwasher
that can't drain..

Any help would be welcome.

Mike

The distance isn't going to make much difference,
the big pump load is to move the water above the
drain point (to avoid siphoning). Many
dishwashers conveniently connect to the garbage
disposal. However they don't need to and you
could simply extend the kitchen drain toward the
dishwasher as you suggested. All you need to do
is be sure you have a trap downstream of the
dishwasher outflow. If you extension is below the
kitchen sink trap then you need to add a trap in
the line you extend for the dishwasher. By the
way "what is a kitchen sink drain valve?" I
presume you mean the drain trap since there are
normally no valves in a drain.

I think this is correct. Most dishwashers are installed with a simple
high loop, where the hose is routed up to the underside of the counter
after it leaves the dishwasher. From there, it's all downhill to the
drain. So the real work done by the pump is to lift the water up to
the bottom of the counter, regardless of the length of hose run, unless
it was extremely long. 3 meters will be a piece of cake!