What Plumbing Do I Need For A Dishwasher?


Here we’ll explain in short, what you need to do when you get a new dishwasher or washing machine – essentially the plumbing in of these two fittings are the same.

Most new machines only require a cold water feed, so you won’t need to worry about fitting a hot water feed. There will be waste water pipe which will need access to a drain and you’ll also need a standard plug socket.

Got all that? Great, let’s get fitting.

If you already have a dishwasher then the process will only involve changing over the pipes and plugging in your appliance, however if you are installing one of these appliances for the first time then you’ll need to find a suitable location for it.

The best place tends to be as close to the sink as possible as you’ll have all the plumbing in place already that you’ll need.

Connecting the cold water feed

For installing for the first time you’ll need some Self Cutting Valves and your property will need 15mm copper water pipes.

Stage 1

Find your nearest water pipe

Stage 2
Take your Self Cutting Valve, place the back plate behind the pipe and fit the top piece on the front. Screw the two together with the nuts provided. Make sure the value is turned off.

Stage 3

Tighten accordingly so the valve cuts into the pipe.

Stage 4

Attach the hose from the washing machine. If your water pipe is too far away and you find that your hose isn’t long enough, it’s possible to buy another hose and a connector to join them together – this will solve this problem.

That’s complete, now your wastewater.

Connecting the wastewater feed

The easiest method of removing the waste water is to connect it to your sink waste pipe.

Stage 1

Locate your sink waste pipe.

Stage 2

You’ll need a trap which fits your waste water pipe provided with your new appliance, if it isn’t large enough you may need to buy a one with a larger inlet.

Stage 3

You’ll need to position the hose so it runs higher than the sink overflow, this will ensure that no waste water can flow back into the appliance.

Stage 4

If you’re install a dishwasher you’ll need to ensure the feet are level in line with the floor surface it sits on. By correctly adjusting the feet of the appliance, it will prevent any unnecessary movements. If not properly fitted during a washing machine cycle the appliance could move too much and could cause irreparable damage.

That’s it! You can pat yourself on the back, turn the water back on and put the kettle on.

If you are still confused then you can give Logical Heating & Plumbing Solutions  a call today.

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