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Waste Pipe Plumbing for Dishwasher

Postby jimbob445 » Sun Feb 09, 2020 5:03 pm

Hi Guys,

I plan to install a dishwasher in my kitchen and need some advice regarding waste drain plumbing.

There is currently a waste pipe underneath the kitchen sink which is plumbed into the wall around 50cm above the floorboards (with a slight negative gradient in the pipe running all the way to the main outer wall).

Unfortunately there is no space to install the dishwasher next to the sink and therefore I will need to extend the waste pipe. Where I plan to put the dishwasher (see image below) it will mean extending the waste pipe underneath the floorboards. My plan is to attach a waste pipe at the back of the dishwasher, have this run under the floorboard for about 2 metres before running back up the 50cms to attach to the kitchen drain pipe. The issue is the journey back up to the kitchen drain - is this even possible? are the pumps in dishwashers powerful enough to push the waste up or does it need gravity?

any help would be greatly appreciated!

thanks!

James
Plan for Dishwasher.jpg
jimbob445
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