Question about Dishwashers
I am replacing an older dishwasher that used copper tubing as a water connection. I would like to replace that tubng with a flexible hose connection. How would I accomplish that?
Go to a place that sells plumbing supplies.
There, you will be able to buy an appliance hose and the fitting which is usually used to plumb these into the domestic water system (a stop valve with a compression fitting for hard tube on one end and a thread to take the hose on the other).
If you're replacing you're old machine with a new one, all you'll need to do is to trim the existing tube at a convenient place (with the water supply turned off) and fit the new stop valve. New dishwashers usually come with a hose, and that just screws onto the threaded end of the new stop valve.
Hints: The hose seals onto the metal fitting using a rubber washer that just sits between the two faces. This system works really well provided you don't try to "help" it with PTFE tape or anything like that. Moistening the threads with a drop of water to lubricate them sometimes helps, but then all you need to do is to assemble the joint (checking the rubber washer hasn't dropped out) and do the plastic nut up finger tight. Check it for leaks when you first use the machine. If it's all right for the first five minutes, it'll be all right for ever.
If you're trying to put your old machine back in, but with a hose to make it easier to move, you will need a second fitting with the same combination of connections as you used to connect the hose to the household plumbing - you may be able to get one without a built-in stop valve, but if you can't it doesn't really matter. Proceed as before, but attach a short stub of the tube you trimmed out in stage 1 to the inlet of the machine (using the existing coupling) and make the new fitting off to that.
Posted on Mar 08, 2008
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