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Replacing copper tubing with a flexible hose for water connection

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?

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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.

A.

Posted on Mar 08, 2008

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The drain usually connects with a flexible plastic hose to the garbage disposal under your kitchen sink. Run the disposal for a minute to see if that unclogs anything.

Remove the hose and blow into it (use a straw and try to make a seal between hose and straw with your hand because old drain pipes taste really bad if you kiss them directly).

Otherwise, your pump may have gond bad - dishwashers do not drain on gravity alone. they all use pumps. Yours may not be worth replacing unless you are really handy and can do it yourself.

Pumps are available and located on the bottom of the unit. Disconnect drain hose. Disconnect circuit breaker. Remove panel by toe-kick and disconnect electical hard-wired connection. Disconnect water (under kitchen sink). Pull it out from under the counter. Order new pump, install and replace. Be careful with the electricity.

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Make certain that the water supply is on. Check to ensure that there are no restrictions with the water inlet supply line (copper or flexible hose). If these check out o.k. then contact an appliance service company.

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For water supply, use a braided stainless steel flexible dishwasher supply hose with 3/8 compression ends on each side and a 3/8 male NPT x 3/8 compression elbow adapter. There is a tee with 3/8 female compression x 3/8 male compression x 3/8 male compression which can be used between the hot water shut off valve and the supply tube to the kitchen sink faucet to get your hot water with no significant plumbing work. Make sure the drain hose does not run straignt down back to the dishwasher. (put a loop up to make sure no dirty water tries to go back to the dishwasher.) If installing drain to a disposer drain port, make sure the knock out plug has been removed. It's also easiest if the floor under the dishwasher is at the same hight as the rest of the floor in the kitchen. Make sure wire nut connections are tight for electrical.

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Hello there:
Troubleshooting Leaks
If the dishwasher leaks, and you know the problem is not related to tub overfilling, the pump, or inlet valve problems, the plumbing connections may be faulty. Most dishwashers are connected to the water supply with metal pipe fittings, and the leak could be at these fittings. If the fittings are threaded, tighten them with an adjustable wrench. If this doesn't work, chances are the threads are stripped or the fitting is cracked or otherwise damaged. In this case, replace the fitting.
Most dishwashers discharge used water through a pipe or a hose connected to the drain or garbage disposer under the kitchen sink. If the drain line is made of flexible hosing, it may have cracked from prolonged exposure to hot water. Examine the hose; if it's damaged, replace it. If the hose is leaking at its connections with the disposer or dishwasher, tighten the fittings or clamps at the connections, or replace the clamps. Also check for water leaks around inlet valves, drain valves, and anywhere you see flexible hoses and hose connections. Leaks at clamps can be stopped by tightening or replacing the clamps. Leaks in hoses can be eliminated by replacing the hoses.
I HOPE THAT YOU FIND THIS INFORMATION VERY HELPFUL
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Hello
This is called the upper spray arm and there is a hole in the center of it that let's it slide on a shaft and then there is a cap that covers this shaft and helps hold it in place.
here is a web link that explains all of this and more ok so feel free to read all of it there is a lot of good information there

The sprayer arms seldom cause any trouble, but sometimes the spray holes in the arms become encrusted with detergent or minerals. When this happens, the holes must be cleaned out so that the arms will work efficiently. Remove the lower arm by twisting off the cap that holds it to the motor shaft. Wash it thoroughly with water and mild household detergent. Sharpen a lead pencil and break off the lead point. Use the tapered end of the pencil to **** out the holes. A wood manicure stick can also be used.

how-to-repair-a-dishwasher-3.jpg
A clogged strainer can cause the dishwasher to flood or overfill. Clean the strainer regularly, or after each load of dishes is washed.Do not use toothpicks, matches, or metal objects for this job. Lightweight wooden sticks could break off in the ports, causing blockage; metal could scrape and enlarge the ports. After cleaning, place the sprayer arm back on the motor shaft and twist the cap back on to hold it in place. Follow the same procedure to clean the upper sprayer arm.
Removing and Cleaning the Strainer
The strainer is located directly under the lower sprayer arm. When the strainer becomes clogged with food and detergent debris, the dishwasher may flood or overfill. On some dishwashers, the strainer is a plastic or metal component consisting of two semicircular halves. To remove this type of strainer, pry it up. On other dishwashers, the strainer is a one-piece component. To remove this type, remove the cap that holds the sprayer arm on its shaft. Then remove the sprayer arm and the strainer.

Wash the strainer in the kitchen sink with water and a mild household detergent. Use a fairly stiff brush to get all the debris out of the holes and slots in the strainer. Rinse the strainer well and replace it. If part of the strainer lifts out for regular cleaning, check it and clean it -- if necessary -- after each load of dishes is washed.
Troubleshooting Leaks
If the dishwasher leaks, and you know the problem is not related to tub overfilling, the pump, or inlet valve problems, the plumbing connections may be faulty. Most dishwashers are connected to the water supply with metal pipe fittings, and the leak could be at these fittings. If the fittings are threaded, tighten them with an adjustable wrench. If this doesn't work, chances are the threads are stripped or the fitting is cracked or otherwise damaged. In this case, replace the fitting.
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hi Most dishwashers discharge used water through a pipe or a hose connected to the drain or garbage disposer under the kitchen sink. If the drain line is made of flexible hosing, it may have cracked from prolonged exposure to hot water. Examine the hose; if it's damaged, replace it. If the hose is leaking at its connections with the disposer or dishwasher, tighten the fittings or clamps at the connections, or replace the clamps. Also check for water leaks around inlet valves, drain valves, and anywhere you see flexible hoses and hose connections. Leaks at clamps can be stopped by tightening or replacing the clamps. Leaks in hoses can be eliminated by replacing the hoses.

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hi If the dishwasher leaks, and you know the problem is not related to tub overfilling, the pump, or inlet valve problems, the plumbing connections may be faulty. Most dishwashers are connected to the water supply with metal pipe fittings, and the leak could be at these fittings. If the fittings are threaded, tighten them with an adjustable wrench. If this doesn't work, chances are the threads are stripped or the fitting is cracked or otherwise damaged. In this case, replace the fitting.
Most dishwashers discharge used water through a pipe or a hose connected to the drain or garbage disposer under the kitchen sink. If the drain line is made of flexible hosing, it may have cracked from prolonged exposure to hot water. Examine the hose; if it's damaged, replace it. If the hose is leaking at its connections with the disposer or dishwasher, tighten the fittings or clamps at the connections, or replace the clamps. Also check for water leaks around inlet valves, drain valves, and anywhere you see flexible hoses and hose connections. Leaks at clamps can be stopped by tightening or replacing the clamps. Leaks in hoses can be eliminated by replacing the hoses.
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if you dishwasher holds water that means the plumbing connections may be faulty. Most dishwashers are connected to the water supply with metal pipe fittings, and the leak could be at these fittings. If the fittings are threaded, tighten them with an adjustable wrench. If this doesn't work, chances are the threads are stripped or the fitting is cracked or otherwise damaged. In this case, replace the fitting.

Most dishwashers discharge used water through a pipe or a hose connected to the drain or garbage disposer under the kitchen sink. If the drain line is made of flexible hosing, it may have cracked from prolonged exposure to hot water. Examine the hose; if it's damaged, replace it. If the hose is leaking at its connections with the disposer or dishwasher, tighten the fittings or clamps at the connections, or replace the clamps. Also check for water leaks around inlet valves, drain valves, and anywhere you see flexible hoses and hose connections. Leaks at clamps can be stopped by tightening or replacing the clamps. Leaks in hoses can be eliminated by replacing the hoses.
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Servicing the Water Pump

In most dishwashers, the water pump is located under the lower sprayer arm. This component pumps the water through the dishwasher. The pump has two impellers, top and bottom. These, as well as other components, can become clogged with food or detergent. Here's how to disassemble the pump:

Step 1: Remove the cap that holds the sprayer arm on.

Step 2: Remove the sprayer arm, the screen, the pump housing, a bolt, the upper impeller, the food disposer blade, a spacer plate, the impeller hood, a flat plate, an O-ring, and the lower impeller. Lay the parts out in order as you disassemble them so that you'll be able to reassemble them properly.

Step 3: Clean the parts thoroughly with a mild detergent solution. If any parts are worn, replace them with new ones made for the dishwasher.

Step 4: Replace any seals, such as the O-ring or other washers, with new ones.

Step 5: Reassemble the pump, keeping the parts in order.

To reach the water pump, remove the sprayer arm and screen and then the pump housing. Remove the bolt, and the pump components can be disassembled.

On some dishwashers, the lower impeller serves as a drain pump. This type of system usually has a reversible motor; machines with nonreversible motors have drain valves, as detailed previously. If your machine possesses this impeller pump system, and the water will not drain from the dishwasher, clean the lower pump impeller. This may solve the problem. Otherwise, call a professional service person.

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1 Answer

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Low water level. Either the inlet valve has trash in the filter screen or you have a bad valve. To check/replace you valve... turn the HOT water off underneath your kitchen sink. Then remove the kick plate and look under there. You'll see where the water line hooks up to the valve, remove the water line (probably a copper tube, but may be flexible stainless steel). Then remove the 2 screws that hold the valve to the frame and let it drop down. Remove the wire harness off the valve. Then use needlenose pliers... see that rubber tube that's connected to the valve? Squeeze that clamp and slid it back, then remove that tube. Now the valve is out. Now that you have it in your hand, look where the supply water comes into the valve... that 90 degree 3/8" fitting. There are 4 screws holding it to the valve. Before you remove them, TAKE NOTE THE DIRECTION OF THE FITTING. Now remove the screws and lift that section off. There you will see the filter screen. If it's clogged, it won't allow water through. Pop it outta there with a knife tip, clean it thoroughly and reinstall it. Rebuild the machine and turn the water back on. Check for leaks! Job time= ~1 hour

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