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It's unlikely that you can temporarily fix your dishwasher until you can get a hold of a new hose. You can certainly try but I wouldn't recommend it because it could result in flooding and ruining your kitchen floors. What I have seen people do to fix a hole in the hose is to wrap the hose with teflon pipe thread tape first, then wrap it with electrical tape afterwards. I've seen it work, but I don't recommend it. As for what hose is leaking, most likely it's the drain hose, but you'd really need to pull the dishwasher out of the cabinet and remove the left side panel to look inside and see for certain where the leak is coming from. You may need to suck up all the water in the base pan and run a cycle while it's pulled out to see where the leak is coming from. As for parts, you can order parts at Searspartsdirect.com depending on which hose is actually leaking.
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