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Old 04-30-2010, 07:24 PM   #1
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Splicing diswasher flexible ribbed plastic drain line


Is there a non-leaking method for splicing the ribbed flexible drain lines used on most dishwashers? I need to extend the line a few feet, but the end of the line with the rubber connection fitting coming from the dw is cracked and I will have to cut off this end. I'm worried that the splice will leak because of the spiral ribbing.

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Old 05-01-2010, 08:24 AM   #2
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Splicing diswasher flexible ribbed plastic drain line


Can a short length of copper pipe go into the rubber coupling (or into the ribbed hose) and be held in place with a hose clamp? (Depends on what sizes you can get) Then get a length of hose and more hose clamps to connect the other end of the short copper pipe to whatever you are connecting to.

Do not add "a couple of feet" to the drain line. This may overload the little pump inside the dishwasher.

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Old 05-01-2010, 08:28 AM   #3
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Splicing diswasher flexible ribbed plastic drain line


i dont like the coupling due to food build up. can you run a longer hose, chk with maker
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Old 05-01-2010, 03:21 PM   #4
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Splicing diswasher flexible ribbed plastic drain line


My main concern with any type of splice (coupling) is that since the inside of the ribbed plastic drain hose is also ribbed, I don't think a smooth exterior coupling will keep the water from running around the spiral. I think I need a new hose, or some kind of coupling that actually threads into the spiral inside the plastic line. Problem is I don't know if that kind of splice part exists.

The total length of the drain line is under 10 feet, which the LG book says is OK.
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Old 05-01-2010, 03:31 PM   #5
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Splicing diswasher flexible ribbed plastic drain line


go to home center and purchase drain line in size needed from roll stock
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