Have fitted new kitchen sink and taps OK. Now trying to fit new outlet for sink and dishwasher with parts from B&Q, 40mm fittings. Can't seem to get it sorted,lost my way. Which parts do I need to go fron sink to outflow pipe picking up dishwasher outlet on route,please?

Drop down to item C on this link. Dishwasher, Informative and Ready to Work for You 610-789-0354 (http://www.contractorssolutions.com/Information/dishwasher.htm#Remove_and_Replace) You drain line needs to lopp up high under the counter and then back down to the Tee above the trap. You might have to install a countertop air gap depending on the plumbing codes in your area.