Table of contents:

Connect the dishwasher: useful tips
Connect the dishwasher: useful tips

Video: Connect the dishwasher: useful tips

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Video: How to attach dishwasher to granite countertop 2023, January
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If you buy a new dishwasher, the installer doesn't always have to come. Even as a layperson, you can easily connect a dishwasher. We show you how it works.

Table of contents Table of contents Connect the dishwasher: Instructions and useful tips

  • Connect the dishwasher: the most important things at a glance
  • What do I have to check before I connect the dishwasher?
  • Connecting the dishwasher: step-by-step instructions
  • How do I install a combination angle valve?

Table of contents Table of contents Connect the dishwasher: Instructions and useful tips

  • Connect the dishwasher: the most important things at a glance
  • What do I have to check before I connect the dishwasher?
  • Connecting the dishwasher: step-by-step instructions
  • How do I install a combination angle valve?

Connect the dishwasher: the most important things at a glance

  • Connect the inlet hose of your dishwasher to the existing water connection.
  • If there is no water connection, install a combination angle valve.
  • You can find out whether you should connect the dishwasher to cold or hot water in the operating instructions.
  • Connect the drain hose to the connection on the siphon of your sink.
  • Even without a sink, the dishwasher can still be connected to the siphon.

What do I have to check before I connect the dishwasher?

  • Make sure that there is a free water connection. In the opposite case, you have to buy and assemble a combination angle valve.
  • With some dishwashers you can use both the hot water and the cold water connection. To do this, refer to the operating instructions for your device.
  • The connection for the waste water hose is usually located in the upper part of the siphon of your sink, directly under the threaded connection to the sink and in front of the bend. If there is none, you must replace the siphon with one with a dishwasher connection.
  • Use a spirit level to check that the dishwasher is straight. If necessary, adjust the feet correctly.
  • Use only an aqua stop hose as the inlet hose to prevent expensive water damage.
  • Have a pipe wrench ready to tighten the hoses. You should also have a bucket ready to catch water that escapes from old hoses.
Aquastopp
Aquastopp

An aquastop hose protects against unpleasant surprises.

Rating: 4.6 out of 5 stars, price: about 20 euros

Photo: Aquastopp

Did you know? If you connect the dishwasher to the hot water, it no longer needs to heat water. Whether this measure is financially worthwhile depends on your type of hot water preparation and the electricity consumption of your device. Those who heat with gas, pellet or solar thermal energy produce hot water more cheaply than the dishwasher. If you have a water heater, modern dishwashers are more efficient. A hot water connection is not worthwhile even with electric boilers.

Connecting the dishwasher: step-by-step instructions

  • Step 1: Turn off the shut-off valve. Note that in some water supply systems there are two separate stopcocks for cold and hot water. Then open any tap and check that no water is really flowing.
  • Step 2: Connect the inlet hose to the water connection and tighten the threaded connection with the pipe wrench. Now open the end tap again and check that water does not leak at any point.
  • Step 3: Remove the plug from the connector on the siphon and insert or screw in the drain hose. Screw the hose clamp tight.
  • Step 4: Connect the dishwasher to the power supply. Start a test program and check the function of the dishwasher.
Abwasserschlauch mit Schlauchklemme am Anschluss befestigen
Abwasserschlauch mit Schlauchklemme am Anschluss befestigen

Attach the waste water hose to the connection with a hose clamp.

Photo: Haus.de

How do I install a combination angle valve?

If your water connection is already occupied, you have to buy and replace a combination angle valve. That is how it goes:

  • Step 1: Turn off the water on the main tap.
  • Step 2: Unscrew the sink inlet hose from the existing corner valve. Make sure that the rubber seals do not fall out. Also have the bucket ready if there is still water in the hose.
  • Step 3: Use a hexagon wrench or pipe wrench to carefully loosen the corner valve from the wall connection. Do not turn too tight to avoid damaging the wall.
  • Step 4: Seal the thread of the combination angle valve with Teflon tape or hemp. Alternatively, self-sealing angle valves are available.
  • Step 5: Insert the screen into the end of the valve.
  • Step 6: Carefully screw in the corner valve with the pipe wrench. Make sure that the seal completely disappears into the holder.
  • Step 7: Now screw the hose of the sink and the inlet hose of the dishwasher onto the respective connection of the corner valve. Be careful not to twist the hoses too much.
  • Step 8: Place the bucket under the corner valve and turn the stopcock on again. If the stopcock is in another room, the best thing to do is to get a second person to stay with the valve and report leaks immediately.
  • Step 9: After a day, check whether the wall connection is tight. If the area around the screen is wet, you should check the seal.
Kalt- und Warmwasseranschluss erkennen
Kalt- und Warmwasseranschluss erkennen

Cold and hot water connections are usually marked. If there is no mark, run warm water and feel with your hand which hose is warming up.

Photo: iStock / michaklootwijk

Genebre Kombi-Eckventil
Genebre Kombi-Eckventil

Genebre combination corner valve: Rating: 4.6 of 5 stars, price: about 9 euros

Photo: Genebre

Can I connect a dishwasher without a sink?

If you don't have a sink, the dishwasher can still be connected. In this case, insert the siphon directly into the drainage connection on the wall. Use a hose nozzle to connect the other end to the sewage hose, which you attach with a hose clamp.

Read more about this here

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